|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

|  | F01 - F04 |
Subsection index
MACHINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F04C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F04B
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
ENGINES |
positive displacement |
rotary or oscillating piston |
liquid and elastic fluid or elastic fluid | F01C
liquid only | F03C
reciprocating piston or other |
liquid and elastic fluid or elastic fluid | F01B
liquid only | F03C
non-positive displacement |
liquid and elastic fluid or elastic fluid | F01D
liquid only | F03B
PUMPS |
positive displacement |
rotary or oscillating piston | F04C
reciprocating piston or other | F04B
non-positive displacement | F04D

WEAPONS; BLASTING

|  | F41 |
WEAPONS

|  | F41 |
Note(s) This class covers also means for practice and training which may have aspects of simulation, e.g. in apparatus for so-called "military games", although simulators are generally covered by class Fulltext... Hierarchy... Expanded...G09. [4] In this class, the following terms or expressions are used with the meanings indicated: "smallarm" means a firearm which is generally held with one or both hands for firing, but this term also includes a light machine-gun which may be supported on a tripod or the like during firing; [5] "gun" means any weapon having a barrel and a trigger or firing mechanism for projecting a missile; it may be a piece of ordnance or a smallarm. It may use combustible or explosive propellant charges, air pressure, electromagnetism or other propulsive forces; [5] "revolver-type gun" means a gun having a revolving drum magazine, the chambers of which are used successively as firing chamber; [5] "revolver" means a revolver-type pistol; [5] "semi-automatic firearm" means a firearm from which one shot is fired after actuation of the trigger and which then returns to a condition for firing a subsequent shot upon renewed actuation of the trigger; "automatic firearm" means a firearm which will continue firing so long as the initial firing pressure is maintained on the trigger; "sighting" means bringing into visual coincidence a direction defined by a so-called "sighting" device with the direction of a target; "aiming" means bringing a weapon to a direction differing from the sighting direction by corrections in order that the projectile may hit the target; "laying" means setting a weapon in the correct position for hitting a target. Attention is drawn to the definitions of "projectile", "missile" and "rocket" given in Note (2) following the title of class Fulltext... Hierarchy... Expanded...F42. [4]

|  | F41A |
FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE [5]

|  | F41A |
Note(s) This subclass covers those features or details which are considered to be of a kind generally applicable to, or to be concerned with intrinsic functions common to, both smallarms and ordnance. [5] Such features or details are classified in this subclass, even if they are stated to be applied only to smallarms or only to ordnance. [5] Attention is drawn to the definitions given in Note (2) following the title of class Fulltext... Hierarchy... Expanded...F41. [5]

|  | F41A |
Subclass index
KINDS OF PROPULSION | 1/00
BREECH MECHANISMS | 3/00
UNLOCKING MECHANISMS | 5/00
GUN RECHARGERS, EXTERNALLY POWERED GUNS | 7/00
FEEDING OR LOADING, MAGAZINES | 9/00
ASSEMBLY FEATURES, MODULAR CONCEPTS, ARTICULATED OR COLLAPSIBLE GUNS | 11/00
COOLING, HEATING, VENTILATING, BLOWING TROUGH | 13/00
EXTRACTORS, EJECTORS | 15/00
SAFETY ARRANGEMENTS | 17/00
FIRING OR TRIGGER MECHANISMS, COCKING | 19/00
BARRELS, GUN TUBES, MUZZLE ATTACHMENTS | 21/00
GUN MOUNTINGS, e.g. on vehicles | 23/00
Permitting recoil | 25/00
Permitting elevation or traversing | 27/00
CLEANING OR LUBRICATING | 29/00
TESTING | 31/00
ADAPTATIONS FOR TRAINING | 33/00
OTHER ACCESSORIES OR DETAILS | 35/00
SUBJECT MATTER NOT PROVIDED FOR IN OTHER GROUPS OF THIS SUBCLASS | 99/00

P:30 |  | F41A 1/00 |
Missile propulsion characterised by the use of explosive or combustible propellant charges (projecting missiles without use of explosive or combustible propellant charge Fulltext... Hierarchy... Expanded...F41B; launching rockets or torpedoes Fulltext... Hierarchy... Expanded...F41F 3/00; missile self-propulsion Fulltext... Hierarchy... Expanded...F42B 15/00) [5]

|  | F41A 1/02 |
· | Hypervelocity missile propulsion using successive means for increasing the propulsive force, e.g. using successively initiated propellant charges arranged along the barrel length; Multistage missile propulsion [5]

|  | F41A 1/04 |
· | Missile propulsion using the combustion of a liquid or gaseous fuel, e.g. hypergolic fuel [5]

|  | F41A 1/06 |
· | Adjusting the range without varying elevation angle or propellant charge data, e.g. by venting a part of the propulsive charge gases, or by adjusting the capacity of the cartridge or combustion chamber [5]

|  | F41A 1/08 |
· | Recoilless guns, i.e. guns having propulsion means producing no recoil [5]

|  | F41A 1/10 |
· · | a counter projectile being used to balance recoil [5]

P:70 |  | F41A 3/00 |
Breech mechanism, e.g. locks [5]

|  | F41A 3/02 |
· | Block action, i.e. the main breech opening movement being transverse to the barrel axis [5]

|  | F41A 3/04 |
· · | with pivoting breech-block [5]

|  | F41A 3/06 |
· · · | about a horizontal axis transverse to the barrel axis at the rear of the block (Fulltext... Hierarchy... Expanded...F41A 3/08 takes precedence) [5]

|  | F41A 3/08 |
· · · | carrying a rotably mounted obturating plug of the screw-thread or the interrupted-thread type (Fulltext... Hierarchy... Expanded...F41A 3/30 takes precedence) [5]

|  | F41A 3/10 |
· · | with sliding breech-block, e.g. vertically [5]

|  | F41A 3/12 |
· | Bolt action, i.e. the main breech opening movement being parallel to the barrel axis [5]

|  | F41A 3/14 |
· · | Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively [5]

|  | F41A 3/16 |
· · · | the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks [5]

|  | F41A 3/18 |
· · · · | hand-operated [5]

|  | F41A 3/20 |
· · · · · | Straight-pull operated bolt locks, i.e. the operating hand effecting only a straight movement parallel to the barrel axis [5]

|  | F41A 3/22 |
· · · · · | the locking being effected by rotating the operating handle or lever transversely to the barrel axis [5]

|  | F41A 3/24 |
· · · · · · | the locking elements forming part of the operating handle or lever [5]

|  | F41A 3/26 |
· · · · | semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt [5]

|  | F41A 3/28 |
· · · · · | having fixed locking elements on the non-rotating bolt and rotating locking elements mounted on the barrel or breech housing, e.g. rotatable rings [5]

|  | F41A 3/30 |
· · · · | Interlocking means, e.g. locking lugs, screw threads [5]

|  | F41A 3/32 |
· · · | the bolt being rocked about a notional axis transverse to the barrel axis [5]

|  | F41A 3/34 |
· · · | the bolt additionally effecting a sliding movement transverse to the barrel axis [5]

|  | F41A 3/36 |
· · | Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrrel or breech housing [5]

|  | F41A 3/38 |
· · · | having rocking locking elements, e.g. pivoting levers or vanes [5]

|  | F41A 3/40 |
· · · · | mounted on the bolt (Fulltext... Hierarchy... Expanded...F41A 3/42 takes precedence) [5]

|  | F41A 3/42 |
· · · · | hand-operated [5]

|  | F41A 3/44 |
· · · | having sliding locking elements, e.g. balls, rollers [5]

|  | F41A 3/46 |
· · · · | mounted on the bolt (Fulltext... Hierarchy... Expanded...F41A 3/48 takes precedence) [5]

|  | F41A 3/48 |
· · · · | hand-operated [5]

|  | F41A 3/50 |
· · · | Toggle-joint locks, e.g. crank-operated [5]

|  | F41A 3/52 |
· · · · | hand-operated [5]

|  | F41A 3/54 |
· · | Bolt locks of the unlocked type, i.e. being inertia operated [5]

|  | F41A 3/56 |
· · · | the bolt being provided with an additional slidable mass [5]

|  | F41A 3/58 |
· | Breakdown breech mechanisms, e.g. for shotguns [5]

|  | F41A 3/60 |
· | Breech mechanisms for guns having two or more barrels (Fulltext... Hierarchy... Expanded...F41A 3/58 takes precedence; for revolving-cannon guns Fulltext... Hierarchy... Expanded...F41F 1/10) [5]

|  | F41A 3/62 |
· | using combustion gas pressure for adding to the mechanical locking action, or for delaying breech opening movement [5]

|  | F41A 3/64 |
· | Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings [5]

|  | F41A 3/66 |
· · | Breech housings or frames; Receivers [5]

|  | F41A 3/68 |
· · | Bolt stops, i.e. means for limiting bolt opening movement [5]

|  | F41A 3/70 |
· · | Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position [5]

|  | F41A 3/72 |
· · | Operating handles or levers; Mounting thereof in breech-blocks or bolts [5]

|  | F41A 3/74 |
· · | Obturating or packing devices for gas leak prevention in breech mechanisms [5]

|  | F41A 3/76 |
· · · | specially adapted for sealing the gap between the forward end of the cartridge chamber and the rearward end of the barrel, e.g. sealing devices for revolvers or revolver-type guns [5]

|  | F41A 3/78 |
· · | Bolt buffer or recuperator means [5]

|  | F41A 3/80 |
· · · | Adjustable spring buffers [5]

|  | F41A 3/82 |
· · · | Coil spring buffers (Fulltext... Hierarchy... Expanded...F41A 3/80 takes precedence) [5]

|  | F41A 3/84 |
· · · · | mounted within the gun stock [5]

|  | F41A 3/86 |
· · · · | mounted under the barrel [5]

|  | F41A 3/88 |
· · · · | mounted around the barrel [5]

|  | F41A 3/90 |
· · · | Fluid buffers [5]

|  | F41A 3/92 |
· · · · | adjustable [5]

|  | F41A 3/94 |
· · · · | in combination with spring buffers [5]

P:50 |  | F41A 5/00 |
Mechanisms or systems operated by propellant charge energy for automatically opening the lock [5]

|  | F41A 5/02 |
· | recoil-operated [5]

|  | F41A 5/04 |
· · | the barrel being tilted during recoil [5]

|  | F41A 5/06 |
· · | the barrel being rotated about its longitudinal axis during recoil [5]

|  | F41A 5/08 |
· · | having an accelerator lever acting on the breech-block or bolt during the opening movement [5]

|  | F41A 5/10 |
· · | having a movable inertia weight [5]

|  | F41A 5/12 |
· · · | mounted in a gun having a fixed barrel [5]

|  | F41A 5/14 |
· · | Barrel stops, i.e. devices for holding the recoiling barrel in a predetermined position, e.g. the recoil position [5]

|  | F41A 5/16 |
· · | having a barrel moving forwardly after the firing of a shot [5]

|  | F41A 5/18 |
· | gas-operated [5]

|  | F41A 5/20 |
· · | using a gas piston arranged concentrically around the barrel [5]

|  | F41A 5/22 |
· · | having two or more gas pistons [5]

|  | F41A 5/24 |
· · | by direct action of gas pressure on bolt or locking elements [5]

|  | F41A 5/26 |
· · | Arrangements or systems for bleeding the gas from the barrel (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 5/20-F41A 5/24 take precedence) [5]

|  | F41A 5/28 |
· · · | Adjustable systems [5]

|  | F41A 5/30 |
· | Gas- or recoil-operation, e.g. selection of gas- or recoil-operated systems [5]

|  | F41A 5/32 |
· | Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil [5]

|  | F41A 5/34 |
· · | with spring accumulators [5]

|  | F41A 5/36 |
· · | with fluid accumulators [5]

P:60 |  | F41A 7/00 |
Auxiliary mechanisms for bringing the breech-block or bolt or the barrel to the starting position before automatic firing (operating handles or levers Fulltext... Hierarchy... Expanded...F41A 3/00); Drives for externally-powered guns (revolving-cannon guns Fulltext... Hierarchy... Expanded...F41F 1/00); Remote-controlled gun chargers [5]

|  | F41A 7/02 |
· | Machine-gun rechargers, e.g. manually operated [5]

|  | F41A 7/04 |
· · | fluid operated [5]

|  | F41A 7/06 |
· · | electrically operated [5]

|  | F41A 7/08 |
· | Drives for externally-powered guns, i.e. drives for moving the breech-block or bolt by an external force during automatic firing [5]

|  | F41A 7/10 |
· · | using a rotating cylindrical drum having a camming groove [5]

P:40 |  | F41A 9/00 |
Feeding or loading of ammunition (adaptations for feeding or loading missiles from magazines in air guns Fulltext... Hierarchy... Expanded...F41B 11/02); Magazines; Guiding means for the extracting of cartridges (cartridge extractors or ejectors Fulltext... Hierarchy... Expanded...F41A 15/00) [5]

|  | F41A 9/01 |
· | Feeding of unbelted ammunition [5]

|  | F41A 9/02 |
· · | using wheel conveyers, e.g. star-wheel-shaped conveyers [5]

|  | F41A 9/03 |
· · | using screw or rotary-spiral conveyers [5]

|  | F41A 9/04 |
· · | using endless-chain belts carrying a plurality of ammunition [5]

|  | F41A 9/05 |
· · · | in tandem sequence [5]

|  | F41A 9/06 |
· · | using cyclically moving conveyers, i.e. conveyers having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke [5]

|  | F41A 9/07 |
· · · | Reciprocating conveyers, i.e. conveyers pushing a plurality of ammunition during the feeding stroke [5]

|  | F41A 9/09 |
· · · | Movable ammunition carriers or loading trays, e.g. for feeding from magazines [5]

|  | F41A 9/10 |
· · · · | pivoting or swinging [5]

|  | F41A 9/11 |
· · · · · | in a horizontal plane [5]

|  | F41A 9/12 |
· · · · · · | mounted within a smallarm [5]

|  | F41A 9/13 |
· · · · · | in a vertical plane [5]

|  | F41A 9/14 |
· · · · · · | transverse to the barrel axis [5]

|  | F41A 9/15 |
· · · · · · · | mounted within a smallarm [5]

|  | F41A 9/16 |
· · · · · · | parallel to the barrel axis [5]

|  | F41A 9/17 |
· · · · · · · | mounted within a smallarm [5]

|  | F41A 9/18 |
· · · · · · · · | feeding from a magazine under the barrel [5]

|  | F41A 9/19 |
· · · · · · · · | feeding from a magazine mounted in the stock [5]

|  | F41A 9/20 |
· · · · | sliding, e.g. reciprocating [5]

|  | F41A 9/21 |
· · · · · | in a vertical direction (Fulltext... Hierarchy... Expanded...F41A 9/23 takes precedence) [5]

|  | F41A 9/22 |
· · · · · | in a horizontal direction (Fulltext... Hierarchy... Expanded...F41A 9/23 takes precedence) [5]

|  | F41A 9/23 |
· · · · · | mounted within a smallarm [5]

|  | F41A 9/24 |
· · | using a movable magazine or clip as feeding element [5]

|  | F41A 9/25 |
· · · | using a sliding clip [5]

|  | F41A 9/26 |
· · · | using a revolving drum magazine [5]

|  | F41A 9/27 |
· · · · | in revolver-type guns [5]

|  | F41A 9/28 |
· · · · · | of smallarm type (in revolvers Fulltext... Hierarchy... Expanded...F41C 3/14) [5]

|  | F41A 9/29 |
· | Feeding of belted ammunition [5]

|  | F41A 9/30 |
· · | Sprocket-type belt transporters [5]

|  | F41A 9/31 |
· · · | with cartridge stripping means [5]

|  | F41A 9/32 |
· · | Reciprocating-slide-type belt transporters [5]

|  | F41A 9/33 |
· · · | with cartridge stripping means [5]

|  | F41A 9/34 |
· · | from magazines (magazines for belted ammunition per se Fulltext... Hierarchy... Expanded...F41A 9/79) [5]

|  | F41A 9/35 |
· | Feeding multibarrel guns [5]

|  | F41A 9/35 |
Note(s) Feeding elements or concepts of general interest, not specially adapted for feeding multibarrel guns, are classified in groups Fulltext... Hierarchy... Expanded...F41A 9/01 or Fulltext... Hierarchy... Expanded...F41A 9/29. [5]

|  | F41A 9/36 |
· · | Feed mechanisms for revolving-cannon guns [5]

|  | F41A 9/37 |
· | Feeding two or more kinds of ammunition to the same gun; Feeding from two sides [5]

|  | F41A 9/37 |
Note(s) Feeding elements or concepts of general interest, not specially adapted for feeding two or more kinds of ammunition or from two sides, are classified in groups Fulltext... Hierarchy... Expanded...F41A 9/01 or Fulltext... Hierarchy... Expanded...F41A 9/29. [5]

|  | F41A 9/38 |
· | Loading arrangements, i.e. for bringing the ammunition into the firing position [5]

|  | F41A 9/39 |
· · | Ramming arrangements [5]

|  | F41A 9/40 |
· · · | the breech-block itself being the rammer [5]

|  | F41A 9/41 |
· · · · | pushing unbelted ammunition from a box magazine on the gun frame into the cartridge chamber [5]

|  | F41A 9/42 |
· · · | Rammers separate from breech-block [5]

|  | F41A 9/43 |
· · · · | Chain rammers [5]

|  | F41A 9/44 |
· · · · | Fluid-operated piston rammers [5]

|  | F41A 9/45 |
· · | the cartridge chamber or the barrel as a whole being tiltable between a loading and a firing position [5]

|  | F41A 9/46 |
· · | the cartridge chamber being formed by two complementary elements, movable one relative to the other for loading [5]

|  | F41A 9/47 |
· · | using forwardly-sliding barrels or barrel parts for loading [5]

|  | F41A 9/48 |
· · | by gravitational force [5]

|  | F41A 9/49 |
· | Internally-powered drives, i.e. operated by propellant charge energy, e.g. couplings, clutches, energy accumulators [5]

|  | F41A 9/50 |
· | External power or control systems [5]

|  | F41A 9/51 |
· · | Boosters, i.e. externally-powered motors [5]

|  | F41A 9/52 |
· | Arrangements for changing from automatic or magazine-loading to hand-loading [5]

|  | F41A 9/53 |
· | Charged-condition indicators, i.e. indicating the presence of a cartridge in the cartridge chamber [5]

|  | F41A 9/54 |
· | Cartridge guides, stops or positioners, e.g. for cartridge extraction [5]

|  | F41A 9/55 |
· · | Fixed guiding means, mounted on, or near, the cartridge chamber [5]

|  | F41A 9/56 |
· · | Movable guiding means [5]

|  | F41A 9/57 |
· · · | Flexible chutes, e.g. for guiding belted ammunition from the magazine to the gun [5]

|  | F41A 9/58 |
· · | Cartridge stops; Cartridge positioners [5]

|  | F41A 9/59 |
· | Ejectors for clips or magazines, e.g. when empty [5]

|  | F41A 9/60 |
· | Empty-cartridge-case or belt-link collectors or catchers (Fulltext... Hierarchy... Expanded...F41A 9/81 takes precedence) [5]

|  | F41A 9/61 |
· | Magazines [5]

|  | F41A 9/62 |
· · | having means for indicating the number of cartridges left in the magazine, e.g. last-round indicators (last-round safeties Fulltext... Hierarchy... Expanded...F41A 17/40) [5]

|  | F41A 9/63 |
· · | specially adapted for releasable connection with other magazines [5]

|  | F41A 9/64 |
· · | for unbelted ammunition [5]

|  | F41A 9/65 |
· · · | Box magazines having a cartridge follower [5]

|  | F41A 9/66 |
· · · · | Arrangements thereon for charging, i.e. reloading (apparatus or tools for reloading magazines Fulltext... Hierarchy... Expanded...F41A 9/83) [5]

|  | F41A 9/67 |
· · · · · | having means for depressing the cartridge follower, or for locking it in a depressed position [5]

|  | F41A 9/68 |
· · · · | Plural magazines, e.g. tandem magazines [5]

|  | F41A 9/69 |
· · · · | characterised by multiple-row or zigzag arrangement of cartridges [5]

|  | F41A 9/70 |
· · · · | Arrangements thereon for discharging, e.g. cartridge followers or discharge throats [5]

|  | F41A 9/71 |
· · · · | Arrangements thereon for varying capacity; Adapters or inserts for changing cartridge size or type [5]

|  | F41A 9/72 |
· · · | Tubular magazines, i.e. magazines containing the ammunition in lengthwise tandem sequence [5]

|  | F41A 9/73 |
· · · | Drum magazines [5]

|  | F41A 9/74 |
· · · · | with radially disposed cartridges [5]

|  | F41A 9/75 |
· · · · | having a spiral cartridge channel [5]

|  | F41A 9/76 |
· · · | Magazines having an endless-chain conveyer [5]

|  | F41A 9/77 |
· · · | Magazines having a screw conveyer [5]

|  | F41A 9/78 |
· · · | Magazines having a reciprocating conveyer [5]

|  | F41A 9/79 |
· · | for belted ammunition [5]

|  | F41A 9/80 |
· · · | having provision for quick-coupling of the belts of adjacent magazines [5]

|  | F41A 9/81 |
· · · | having provision for collecting belt links or empty cartridge cases [5]

|  | F41A 9/82 |
· | Reloading of magazines [5]

|  | F41A 9/83 |
· · | Apparatus or tools for reloading magazines with unbelted ammunition, e.g. cartridge clips [5]

|  | F41A 9/84 |
· · · | Clips [5]

|  | F41A 9/85 |
· · · · | for reloading revolver-type magazines [5]

|  | F41A 9/86 |
· · | Feeding belted ammunition into magazines [5]

|  | F41A 9/87 |
· | Ammunition handling dollies or transfer carts (Fulltext... Hierarchy... Expanded...F41A 9/86 takes precedence) [5]

P:110 |  | F41A 11/00 |
Assembly or disassembly features; Modular concepts; Articulated or collapsible guns (Fulltext... Hierarchy... Expanded...F41A 3/64, Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 19/10-F41A 19/15, Fulltext... Hierarchy... Expanded...F41A 21/48, Fulltext... Hierarchy... Expanded...F41A 25/26 take precedence) [5]

|  | F41A 11/02 |
· | Modular concepts, e.g. weapon-family concepts [5]

|  | F41A 11/04 |
· | Articulated or collapsible guns, i.e. with hinged or telescopic parts for transport or storage (breakdown shotguns or rifles Fulltext... Hierarchy... Expanded...F41C 7/11; folding or telescopic stocks or stock parts Fulltext... Hierarchy... Expanded...F41C 23/04) [5]

|  | F41A 11/06 |
· · | Telescopic guns [5]

P:120 |  | F41A 13/00 |
Cooling or heating systems (barrels or gun tubes with fins or ribs Fulltext... Hierarchy... Expanded...F41A 21/00); Blowing-through of gun barrels; Ventilating systems [5]

|  | F41A 13/02 |
· | Heating systems [5]

|  | F41A 13/04 |
· | Injecting fluids into barrels or cartridge chambers (Fulltext... Hierarchy... Expanded...F41A 13/08 takes precedence) [5]

|  | F41A 13/06 |
· | Evacuating combustion gas from barrels (Fulltext... Hierarchy... Expanded...F41A 13/10 takes precedence) [5]

|  | F41A 13/08 |
· · | Bore evacuators, i.e. chambers disposed around barrels for storing part of the combustion gas and subsequently injecting it into the barrel to provide suction [5]

|  | F41A 13/10 |
· | Blowers or turbines for evacuating or cooling guns, e.g. driven by combustion gas pressure or recoil [5]

|  | F41A 13/12 |
· | Systems for cooling the outer surface of the barrel (Fulltext... Hierarchy... Expanded...F41A 13/10 takes precedence) [5]

P:90 |  | F41A 15/00 |
Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun (Fulltext... Hierarchy... Expanded...F41A 9/54 takes precedence) [5]

|  | F41A 15/02 |
· | for revolver-type guns, e.g. revolvers [5]

|  | F41A 15/04 |
· | specially adapted for cartridge cases being deformed when fired, e.g. of plastics [5]

|  | F41A 15/06 |
· | for breakdown guns [5]

|  | F41A 15/08 |
· | for block-action guns [5]

|  | F41A 15/10 |
· · | of sliding-block type [5]

|  | F41A 15/12 |
· | for bolt-action guns [5]

|  | F41A 15/14 |
· · | the ejector being mounted on, or within, the bolt [5]

|  | F41A 15/16 |
· · | the ejector being mounted on the breech housing or frame [5]

|  | F41A 15/18 |
· | for guns with forwardly slidable barrels [5]

|  | F41A 15/20 |
· | specially adapted for caseless-ammunition duds [5]

|  | F41A 15/22 |
· | Tools for extracting cartridges [5]

P:10 |  | F41A 17/00 |
Safety arrangements, e.g. safeties [5]

|  | F41A 17/02 |
· | Key-operated safeties [5]

|  | F41A 17/04 |
· | Safeties of the combination-lock type (Fulltext... Hierarchy... Expanded...F41A 17/02 takes precedence) [5]

|  | F41A 17/06 |
· | Electric or electromechanical safeties (Fulltext... Hierarchy... Expanded...F41A 17/04, Fulltext... Hierarchy... Expanded...F41A 17/08 take precedence) [5]

|  | F41A 17/08 |
· | for inhibiting firing in a specified direction, e.g. at a friendly person or at a protected area (Fulltext... Hierarchy... Expanded...F41A 27/02 takes precedence) [5]

|  | F41A 17/10 |
· · | Firing mechanisms with elevation stop [5]

|  | F41A 17/12 |
· · | Firing mechanisms with anti-canting safety [5]

|  | F41A 17/14 |
· | Double-loading prevention [5]

|  | F41A 17/16 |
· | Cook-off prevention, i.e. prevention of spontaneous firing of a cartridge by chamber wall heat [5]

|  | F41A 17/18 |
· | Hang-fire prevention [5]

|  | F41A 17/20 |
· | Grip or stock safeties, i.e. safeties disengaged by clasping the grip or stock (thumb-operated sliding safeties Fulltext... Hierarchy... Expanded...F41A 17/52, Fulltext... Hierarchy... Expanded...F41A 17/62, Fulltext... Hierarchy... Expanded...F41A 17/70, Fulltext... Hierarchy... Expanded...F41A 17/80) [5]

|  | F41A 17/22 |
· · | acting on the trigger [5]

|  | F41A 17/24 |
· · | acting on the firing pin [5]

|  | F41A 17/26 |
· · | acting on the hammer [5]

|  | F41A 17/28 |
· · | acting on the sear [5]

|  | F41A 17/30 |
· | Multiple safeties, i.e. safeties acting on at least one element of the firing mechanism and at least one other element of the gun, e.g. the moving barrel [5]

|  | F41A 17/32 |
· · | the other element being the breech-block or bolt [5]

|  | F41A 17/34 |
· | Magazine safeties [5]

|  | F41A 17/36 |
· · | locking the gun in a safety condition when the magazine is empty or removed [5]

|  | F41A 17/38 |
· · | locking the magazine in the gun [5]

|  | F41A 17/40 |
· | Last-round safeties (Fulltext... Hierarchy... Expanded...F41A 17/34 takes precedence) [5]

|  | F41A 17/42 |
· | Safeties for locking the breech-block or bolt in a safety position (Fulltext... Hierarchy... Expanded...F41A 17/32, Fulltext... Hierarchy... Expanded...F41A 17/36, Fulltext... Hierarchy... Expanded...F41A 17/40 take precedence) [5]

|  | F41A 17/44 |
· | Safety plugs, e.g. for plugging-up cartridge chambers [5]

|  | F41A 17/46 |
· | Trigger safeties, i.e. means for preventing trigger movement (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 17/02-F41A 17/40 take precedence) [5]

|  | F41A 17/48 |
· · | Automatically operated trigger safeties, i.e. operated by breech opening or closing movement [5]

|  | F41A 17/50 |
· · · | by breakdown action [5]

|  | F41A 17/52 |
· · | Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns [5]

|  | F41A 17/54 |
· · | Protecting-caps for trigger guards; Trigger locking pieces mounted on, or within, the trigger guard [5]

|  | F41A 17/56 |
· | Sear safeties, i.e. means for rendering ineffective an intermediate lever transmitting trigger movement to firing pin, hammer, bolt or sear (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 17/02-F41A 17/40 take precedence) [5]

|  | F41A 17/58 |
· · | automatically operated, i.e. operated by breech opening or closing movement [5]

|  | F41A 17/60 |
· · · | by breakdown action [5]

|  | F41A 17/62 |
· · | Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns [5]

|  | F41A 17/64 |
· | Firing-pin safeties, i.e. means for preventing movement of slidably-mounted strikers (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 17/02-F41A 17/40 take precedence) [5]

|  | F41A 17/66 |
· · | automatically operated, i.e. operated by breech opening or closing movement [5]

|  | F41A 17/68 |
· · · | by breakdown action [5]

|  | F41A 17/70 |
· · | Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns [5]

|  | F41A 17/72 |
· · | trigger-operated, i.e. the movement of the trigger bringing a firing-pin safety into inoperative position during the firing [5]

|  | F41A 17/74 |
· | Hammer safeties, i.e. for preventing the hammer from hitting the cartridge or the firing pin (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 17/02-F41A 17/40 take precedence) [5]

|  | F41A 17/76 |
· · | automatically operated, i.e. operated by breech opening or closing movement [5]

|  | F41A 17/78 |
· · · | by breakdown action [5]

|  | F41A 17/80 |
· · | Thumb-operated sliding safeties mounted on the upside of the stock, e.g. for shotguns [5]

|  | F41A 17/82 |
· · | trigger-operated, i.e. the movement of the trigger bringing a hammer safety into inoperative position during firing [5]

P:80 |  | F41A 19/00 |
Firing or trigger mechanisms; Cocking mechanisms [5]

|  | F41A 19/01 |
· | Counting means indicating the number of shots fired [5]

|  | F41A 19/02 |
· · | Burst limiters (Fulltext... Hierarchy... Expanded...F41A 19/67 takes precedence) [5]

|  | F41A 19/03 |
· | Shot-velocity control (Fulltext... Hierarchy... Expanded...F41A 3/78, Fulltext... Hierarchy... Expanded...F41A 5/28, Fulltext... Hierarchy... Expanded...F41A 19/05, Fulltext... Hierarchy... Expanded...F41A 19/66 take precedence) [5]

|  | F41A 19/04 |
· · | by regulating the time of release of the firing pin or hammer [5]

|  | F41A 19/05 |
· | Synchronising for firing through the propeller of an aircraft [5]

|  | F41A 19/06 |
· | Mechanical firing mechanisms (Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...F41A 19/01-F41A 19/05, Fulltext... Hierarchy... Expanded...F41A 19/59 take precedence) [5]

|  | F41A 19/07 |
· · | press-button actuated, e.g. with thumb rest [5]

|  | F41A 19/08 |
· · | remote actuated; lanyard actuated [5]

|  | F41A 19/09 |
· · | Auxiliary trigger devices (Fulltext... Hierarchy... Expanded...F41A 19/08 takes precedence) [5]

|  | F41A 19/10 |
· · | Triggers; Trigger mountings [5]

|  | F41A 19/11 |
· · | Trigger guards; Trigger-guard mountings (Fulltext... Hierarchy... Expanded...F41A 19/15 takes precedence) [5]

|  | F41A 19/12 |
· · | Sears; Sear mountings [5]

|  | F41A 19/13 |
· · | Percussion or firing pins, i.e. fixed or slidably- mounted striker elements; Mountings therefor [5]

|  | F41A 19/14 |
· · | Hammers, i.e. pivotably-mounted striker elements; Hammer mountings [5]

|  | F41A 19/15 |
· · | Modular firing mechanism units [5]

|  | F41A 19/16 |
· · | Adjustable firing mechanisms; Trigger mechanisms with adjustable trigger pull (Fulltext... Hierarchy... Expanded...F41A 19/17 takes precedence) [5]

|  | F41A 19/17 |
· · | Hair-trigger mechanisms [5]

|  | F41A 19/18 |
· · | for multibarrel guns (Fulltext... Hierarchy... Expanded...F41A 19/68 takes precedence) [5]

|  | F41A 19/19 |
· · · | with single-trigger firing possibility [5]

|  | F41A 19/20 |
· · · · | Double-trigger arrangements having the possibility of single-trigger actuation [5]

|  | F41A 19/21 |
· · · · | having only one trigger [5]

|  | F41A 19/22 |
· · · · · | and only one striker element [5]

|  | F41A 19/23 |
· · · · · · | rotatable about an axis parallel to the barrel axis for firing subsequent barrels [5]

|  | F41A 19/24 |
· · | Release-trigger mechanisms, i.e. the striker element being released during the return movement of the trigger subsequent to trigger pull [5]

|  | F41A 19/25 |
· · | having only slidably-mounted striker elements, i.e. percussion or firing pins [5]

|  | F41A 19/26 |
· · · | the percussion or firing pin and the breech-block or bolt forming one piece [5]

|  | F41A 19/27 |
· · · | the percussion or firing pin being movable relative to the breech-block [5]

|  | F41A 19/28 |
· · · · | propelled by a cam or lever when the breech-block or bolt arrives at a closing position [5]

|  | F41A 19/29 |
· · · · | propelled by a spring under tension [5]

|  | F41A 19/30 |
· · · · · | in bolt-action guns [5]

|  | F41A 19/31 |
· · · · · · | Sear arrangements therefor (Fulltext... Hierarchy... Expanded...F41A 19/33 takes precedence) [5]

|  | F41A 19/32 |
· · · · · · · | for catching the percussion or firing pin after each shot, i.e. in single-shot or semi-automatic firing mode [5]

|  | F41A 19/33 |
· · · · · · | Arrangements for the selection of automatic or semi-automatic fire [5]

|  | F41A 19/34 |
· · · · · · | Cocking mechanisms [5]

|  | F41A 19/35 |
· · · · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/36 |
· · · · · | in block-action guns [5]

|  | F41A 19/37 |
· · · · · · | Cocking mechanisms [5]

|  | F41A 19/38 |
· · · · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/39 |
· · · · · | Cocking mechanisms for other types of guns, e.g. fixed breech-block types, forwardly-slidable barrel types [5]

|  | F41A 19/40 |
· · · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/41 |
· · · · · · | for breakdown guns [5]

|  | F41A 19/42 |
· · | having at least one hammer [5]

|  | F41A 19/43 |
· · · | in bolt-action guns [5]

|  | F41A 19/44 |
· · · · | Sear arrangements therefor (Fulltext... Hierarchy... Expanded...F41A 19/46 takes precedence) [5]

|  | F41A 19/45 |
· · · · · | for catching the hammer after each shot, i.e. in single-shot or semi- automatic firing mode [5]

|  | F41A 19/46 |
· · · · | Arrangements for the selection of automatic or semi-automatic fire [5]

|  | F41A 19/47 |
· · · · | Cocking mechanisms [5]

|  | F41A 19/48 |
· · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/49 |
· · · | in block-action guns [5]

|  | F41A 19/50 |
· · · · | Cocking mechanisms [5]

|  | F41A 19/51 |
· · · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/52 |
· · · | Cocking mechanisms for other types of guns, e.g. fixed breech-block types, revolvers [5]

|  | F41A 19/53 |
· · · · | Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement [5]

|  | F41A 19/54 |
· · · · | for breakdown guns [5]

|  | F41A 19/55 |
· | Fluid-operated firing mechanisms [5]

|  | F41A 19/56 |
· · | Ignition of the propellant charge by contact with air heated by adiabatic compression [5]

|  | F41A 19/57 |
· | Firing mechanisms operating with primer cartridge [5]

|  | F41A 19/58 |
· | Electric firing mechanisms (Fulltext... Hierarchy... Expanded...F41A 17/10, Fulltext... Hierarchy... Expanded...F41A 17/12 take precedence) [5]

|  | F41A 19/59 |
· · | Electromechanical firing mechanisms, i.e. the mechanical striker element being propelled or released by electric means [5]

|  | F41A 19/60 |
· · | characterised by the means for generating electric energy [5]

|  | F41A 19/61 |
· · · | Inductive generators [5]

|  | F41A 19/62 |
· · · | Piezo-electric generators [5]

|  | F41A 19/63 |
· · | having means for contactless transmission of electric energy, e.g. by induction, by sparking gap [5]

|  | F41A 19/64 |
· · | for automatic or burst-firing mode [5]

|  | F41A 19/65 |
· · · | for giving ripple fire, i.e. using electric sequencer switches for timed multiple-charge launching, e.g. for rocket launchers [5]

|  | F41A 19/66 |
· · · | Electronic shot-velocity control (Fulltext... Hierarchy... Expanded...F41A 19/65 takes precedence) [5]

|  | F41A 19/67 |
· · · | Burst limiters [5]

|  | F41A 19/68 |
· · | for multibarrel guns (Fulltext... Hierarchy... Expanded...F41A 19/65 takes precedence) [5]

|  | F41A 19/69 |
· · | Electric contacts or switches peculiar thereto (Fulltext... Hierarchy... Expanded...F41A 19/65 takes precedence) [5]

|  | F41A 19/70 |
· · · | Electric firing pins; Mountings therefor [5]

P:100 |  | F41A 21/00 |
Barrels; Gun tubes; Muzzle attachments; Barrel mounting means (Fulltext... Hierarchy... Expanded...F41A 25/00 takes precedence; barrel attachments for firing grenades or riot-control ammunition from smallarms Fulltext... Hierarchy... Expanded...F41C 27/06; sighting devices Fulltext... Hierarchy... Expanded...F41G 1/00) [5]

|  | F41A 21/02 |
· | Composite barrels, i.e. barrels having multiple layers, e.g. of different materials [5]

|  | F41A 21/04 |
· · | Barrel liners [5]

|  | F41A 21/06 |
· | Plural barrels [5]

|  | F41A 21/08 |
· · | Barrel junctions [5]

|  | F41A 21/10 |
· | Insert barrels, i.e. barrels for firing reduced calibre ammunition and being mounted within the normal barrels [5]

|  | F41A 21/12 |
· | Cartridge chambers; Chamber liners (Fulltext... Hierarchy... Expanded...F41A 3/74, Fulltext... Hierarchy... Expanded...F41A 9/46, Fulltext... Hierarchy... Expanded...F41A 21/04 take precedence) [5]

|  | F41A 21/14 |
· · | Arrangement of cartridge chambers lateral to the barrel axis [5]

|  | F41A 21/16 |
· | Barrels or gun tubes characterised by the shape of the bore [5]

|  | F41A 21/18 |
· · | Grooves; Rifling [5]

|  | F41A 21/20 |
· | Barrels or gun tubes characterised by the material (Fulltext... Hierarchy... Expanded...F41A 21/02 takes precedence) [5]

|  | F41A 21/22 |
· | Barrels which have undergone surface treatment, e.g. phosphating [5]

|  | F41A 21/24 |
· | Barrels or gun tubes with fins or ribs, e.g. for cooling [5]

|  | F41A 21/26 |
· | specially adapted for recoil reinforcement, e.g. for training purposes [5]

|  | F41A 21/28 |
· | Gas-expansion chambers; Barrels provided with gas-relieving ports (Fulltext... Hierarchy... Expanded...F41A 1/06, Fulltext... Hierarchy... Expanded...F41A 13/08 take precedence) [5]

|  | F41A 21/30 |
· | Silencers [5]

|  | F41A 21/32 |
· | Muzzle attachments or glands (Fulltext... Hierarchy... Expanded...F41A 21/26, Fulltext... Hierarchy... Expanded...F41A 21/30, Fulltext... Hierarchy... Expanded...F41A 21/46 take precedence) [5]

|  | F41A 21/34 |
· · | Flash dampers [5]

|  | F41A 21/36 |
· · | for recoil reduction (recoil reduction arrangements in general Fulltext... Hierarchy... Expanded...F41A 25/00) [5]

|  | F41A 21/38 |
· · · | adjustable [5]

|  | F41A 21/40 |
· · | Chokes for shotguns [5]

|  | F41A 21/42 |
· · · | adjustable [5]

|  | F41A 21/44 |
· | Insulation jackets; Protective jackets [5]

|  | F41A 21/46 |
· | Barrels having means for separating sabots from projectiles [5]

|  | F41A 21/48 |
· | Barrel mounting means, e.g. releasable mountings for replaceable barrels [5]

P:170 |  | F41A 23/00 |
Gun mountings, e.g. on vehicles; Disposition of guns on vehicles (Fulltext... Hierarchy... Expanded...F41A 25/00, Fulltext... Hierarchy... Expanded...F41A 27/00 take precedence) [5]

|  | F41A 23/02 |
· | Mountings without wheels [5]

|  | F41A 23/04 |
· · | Unipods [5]

|  | F41A 23/06 |
· · · | adjustable [5]

|  | F41A 23/08 |
· · | Bipods [5]

|  | F41A 23/10 |
· · · | adjustable [5]

|  | F41A 23/12 |
· · | Tripods [5]

|  | F41A 23/14 |
· · · | adjustable [5]

|  | F41A 23/16 |
· · | Testing mounts [5]

|  | F41A 23/18 |
· · | Rests for supporting smallarms in non-shooting position (racks for storage Fulltext... Hierarchy... Expanded...A47B 81/00; racks in vehicles Fulltext... Hierarchy... Expanded...B60R 11/00) [5]

|  | F41A 23/20 |
· | for disappearing guns [5]

|  | F41A 23/22 |
· · | on board of submarines [5]

|  | F41A 23/24 |
· | Turret gun mountings (feeding, loading or guiding ammunition Fulltext... Hierarchy... Expanded...F41A 9/00; mechanical elevating or traversing systems for turret guns Fulltext... Hierarchy... Expanded...F41A 27/18) [5]

|  | F41A 23/26 |
· | Mountings for transport only; Loading or unloading arrangements for guns for use with carrier vehicles (Fulltext... Hierarchy... Expanded...F41A 23/50 takes precedence) [5]

|  | F41A 23/28 |
· | Wheeled-gun mountings; Endless-track gun mountings [5]

|  | F41A 23/30 |
· · | the wheels being liftable from the ground for firing [5]

|  | F41A 23/32 |
· · | with split trails (Fulltext... Hierarchy... Expanded...F41A 23/30, Fulltext... Hierarchy... Expanded...F41A 23/46 take precedence) [5]

|  | F41A 23/34 |
· | on wheeled or endless-track vehicles [5]

|  | F41A 23/36 |
· · | on trailers (Fulltext... Hierarchy... Expanded...F41A 23/42 takes precedence) [5]

|  | F41A 23/38 |
· · | on motorcycles [5]

|  | F41A 23/40 |
· · | on rail vehicles [5]

|  | F41A 23/42 |
· · | for rocket throwers [5]

|  | F41A 23/44 |
· | on sledges [5]

|  | F41A 23/46 |
· | Trail spades [5]

|  | F41A 23/48 |
· · | elastic [5]

|  | F41A 23/50 |
· | Travelling locks; Brakes for holding the gun platform in a fixed position during transport [5]

|  | F41A 23/52 |
· | Base plates for gun mountings [5]

|  | F41A 23/54 |
· · | for mortars [5]

|  | F41A 23/56 |
· | Arrangements for adjusting the gun platform in the vertical or horizontal position (Fulltext... Hierarchy... Expanded...F41A 17/10, Fulltext... Hierarchy... Expanded...F41A 17/12 take precedence) [5]

|  | F41A 23/58 |
· · | Hydraulic jacks [5]

|  | F41A 23/60 |
· · | Screw-operated jacks [5]

P:150 |  | F41A 25/00 |
Gun mountings permitting recoil or return to battery, e.g. gun cradles; Barrel buffers or brakes (recoilless guns Fulltext... Hierarchy... Expanded...F41A 1/08) [5]

|  | F41A 25/02 |
· | Fluid-operated systems [5]

|  | F41A 25/04 |
· · | adjustable [5]

|  | F41A 25/06 |
· | Friction-operated systems [5]

|  | F41A 25/08 |
· · | adjustable [5]

|  | F41A 25/10 |
· | Spring-operated systems [5]

|  | F41A 25/12 |
· · | using coil springs [5]

|  | F41A 25/14 |
· · · | adjustable [5]

|  | F41A 25/16 |
· | Hybrid systems [5]

|  | F41A 25/18 |
· · | Hydroelastic systems [5]

|  | F41A 25/20 |
· · | Hydropneumatic systems [5]

|  | F41A 25/22 |
· | Bearing arrangements for the reciprocating gun-mount or barrel movement [5]

|  | F41A 25/24 |
· · | using ball or roller bearings [5]

|  | F41A 25/26 |
· | Assembling or dismounting recoil elements or systems [5]

P:160 |  | F41A 27/00 |
Gun mountings permitting traversing or elevating movement, e.g. gun carriages [5]

|  | F41A 27/02 |
· | Control systems for preventing interference between the moving gun and the adjacent structure [5]

|  | F41A 27/04 |
· | Scatter-fire arrangements, i.e. means for oscillating guns automatically during firing [5]

|  | F41A 27/06 |
· | Mechanical systems (Fulltext... Hierarchy... Expanded...F41A 27/02, Fulltext... Hierarchy... Expanded...F41A 27/04, Fulltext... Hierarchy... Expanded...F41A 27/30 take precedence) [5]

|  | F41A 27/08 |
· · | Bearings, e.g. trunnions; Brakes or blocking arrangements [5]

|  | F41A 27/10 |
· · · | Bearings for supporting a pivoting gun in a wall, e.g. a turret wall [5]

|  | F41A 27/12 |
· · · | Brakes or locks for blocking traversing or elevating gear in a fixed position [5]

|  | F41A 27/14 |
· · · | Central-pivot bearings [5]

|  | F41A 27/16 |
· · · | using raceway bearings, e.g. for supporting the turret [5]

|  | F41A 27/18 |
· · | for gun turrets (Fulltext... Hierarchy... Expanded...F41A 27/08 takes precedence) [5]

|  | F41A 27/20 |
· · · | Drives for turret movements [5]

|  | F41A 27/22 |
· · | Traversing gear (Fulltext... Hierarchy... Expanded...F41A 27/18 takes precedence) [5]

|  | F41A 27/24 |
· · | Elevating gear (Fulltext... Hierarchy... Expanded...F41A 27/18 takes precedence) [5]

|  | F41A 27/26 |
· | Fluid-operated systems (Fulltext... Hierarchy... Expanded...F41A 27/02, Fulltext... Hierarchy... Expanded...F41A 27/04, Fulltext... Hierarchy... Expanded...F41A 27/30 take precedence) [5]

|  | F41A 27/28 |
· | Electrically-operated systems (Fulltext... Hierarchy... Expanded...F41A 27/02, Fulltext... Hierarchy... Expanded...F41A 27/04, Fulltext... Hierarchy... Expanded...F41A 27/30 take precedence) [5]

|  | F41A 27/30 |
· | Stabilisation or compensation systems, e.g. compensating for barrel weight or wind force [5]

P:130 |  | F41A 29/00 |
Cleaning or lubricating arrangements (injecting fluids into barrels or cartridge chambers Fulltext... Hierarchy... Expanded...F41A 13/04) [5]

|  | F41A 29/02 |
· | Scrapers or cleaning rods [5]

|  | F41A 29/04 |
· | Lubricating, oiling or greasing means, e.g. operating during use [5]

P:20 |  | F41A 31/00 |
Testing arrangements (testing mounts Fulltext... Hierarchy... Expanded...F41A 23/16) [5]

|  | F41A 31/02 |
· | for checking gun barrels [5]

P:0 |  | F41A 33/00 |
Adaptations for training (adaptations of barrels for recoil reinforcement Fulltext... Hierarchy... Expanded...F41A 21/26); Gun simulators (teaching or practice apparatus for gun-aiming or gun-laying Fulltext... Hierarchy... Expanded...F41G 3/26) [5]

|  | F41A 33/02 |
· | Light- or radiation-emitting guns [5]

|  | F41A 33/04 |
· | Acoustical simulation of gun fire, e.g. by pyrotechnic means [5]

|  | F41A 33/06 |
· | Recoil simulators [5]

P:140 |  | F41A 35/00 |
Accessories or details not otherwise provided for [5]

|  | F41A 35/02 |
· | Dust- or weather-protection caps or covers (protecting-caps for trigger guards Fulltext... Hierarchy... Expanded...F41A 17/54) [5]

|  | F41A 35/04 |
· · | Muzzle covers [5]

|  | F41A 35/06 |
· | Adaptation of guns to both right and left hand use [5]

P:180 |  | F41A 99/00 |
Subject matter not provided for in other groups of this subclass [8]