B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
  
TRANSPORTING
 B64
AIRCRAFT; AVIATION; COSMONAUTICS
 B64B
LIGHTER-THAN-AIR AIRCRAFT (ground installations for aircraft in general B64F)

 B64C
AEROPLANES; HELICOPTERS (air-cushion vehicles B60V)
 B64C

Note(s)

As far as possible, an invention is classified primarily according to constructional features; classification according to particular kinds of aircraft is normally regarded as being of secondary importance, except in cases where this is understood to be the characteristic feature.


 B64D
EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS

 B64F
GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS
 B64F

Note(s)

  1. In this sub-class, the term "installations" embraces equipment, including mobile equipment, peculiar to use in connection with aircraft and not fitted thereto.
  2. The term "ground installations" in this sub-class embraces waterborne installations.

 B64G
COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR (apparatus for, or methods of, winning materials from extraterrestrial sources E21C 51/00)
 B64G

Note(s)

  1. In this sub-class, the term "cosmonautics" includes all transport outside the earth's atmosphere, and thus includes artificial earth satellites, and interplanetary and interstellar travel.
  2. This sub-class deals only with vehicles, equipment, etc., which are peculiarly adapted for cosmonautics. Thus, vehicles and equipment applicable to both cosmonautics and aeronautics are classified in the appropriate aeronautical sub-class of class B64.