G
SECTION G — PHYSICS
 G

Note(s)

  1. In this section, the following term is used with the meaning indicated:
    • "variable" (as a noun) means a feature or property (e.g., a dimension, a physical condition such as temperature, a quality such as density or colour) which, in respect of a particular entity (e.g., an object, a quantity of a substance, a beam of light) and at a particular instant, is capable of being measured; the variable may change, so that its numerical expression may assume different values at different times, in different conditions or in individual cases, but may be constant in respect of a particular entity in certain conditions or for practical purposes (e.g., the length of a bar may be regarded as constant for many purposes).
  2. Attention is drawn to the definitions of terms or expressions used, appearing in the notes of several of the classes in this section, in particular those of "measuring" in class G01 and "control" and "regulation" in class G05.
  3. Classification in this section may present more difficulty than in other sections, because the distinction between different fields of use rests to a considerable extent on differences in the intention of the user rather than on any constructional differences or differences in the manner of use, and because the subjects dealt with are often in effect systems or combinations, which have features or parts in common, rather than "things", which are readily distinguishable as a whole. For example, information (e.g., a set of figures) may be displayed for the purpose of education or advertising (G09), for enabling the result of a measurement to be known (G01), for signalling the information to a distant point or for giving information which has been signalled from a distant point (G08). The words used to describe the purpose depend on features that may be irrelevant to the form of the apparatus concerned, for example, such features as the desired effect on the person who sees the display, or whether the display is controlled from a remote point. Again, a device which responds to some change in a condition, e.g., in the pressure of a fluid, may be used, without modification of the device itself, to give information about the pressure (G01L) or about some other condition linked to the pressure (another subclass of class G01, e.g., G01K for temperature), to make a record of the pressure or of its occurrence (G07C), to give an alarm (G08B), or to control another apparatus (G05).

    The classification scheme is intended to enable things of a similar nature (as indicated above) to be classified together. It is therefore particularly necessary for the real nature of any technical subject to be decided before it can be properly classified.

  
INSTRUMENTS
 G09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
 G09F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS (display cases A47F; designs or pictures characterised by special or unusual light effects, e.g. changing, B44F 1/00; disposition of road signs or traffic signals E01F 9/00; lighting in general F21; arrangements for controlling light beams G02F 1/00; visible signalling arrangements or devices G08B 5/00; traffic control systems G08G; arrangements or circuits for control of indicating devices using static means to present variable information G09G; static indicating arrangements comprising integral associations of a plurality of light sources H01J, H01K, H01L, H05B 33/12)
 G09F

Note(s)

  1. In this subclass, the following term is used with the meaning indicated:
    • "sign" designates a mark or indication serving to make something recognisable, the information presented being non-varying, even if it is flashing; by way of example it covers, therefore, advertising hoardings, or luminous, or light reflecting, safety arrangements.  [3]
  2. Attention is drawn to the Notes following the titles of class B81 and subclass B81B relating to "micro-structural devices" and "micro-structural systems". [7]
 G09F
Subclass index
INFORMATION AND ADVERTISING
Displaying samples 5/00
With fixed information:
show-cards; labels or tags; signs, plates, characters 1/00; 3/00; 7/00
With variable information:
by combination of elements; by movement of complete information 9/00; 11/00
Illuminated signs; luminous advertising 13/00
Supports used for bill-posting and advertising: panels; banners; goods; others 15/00; 17/00; 23/00; 19/00
PROCESSES OF ADVERTISING
Movable; audible; audio-visual; others 21/00; 25/00; 27/00; 19/00
P:70 G09F 1/00
Cardboard or like show-cards of foldable or flexible material
P:90 G09F 3/00
Labels, tag tickets, or similar identification or indication means (medals or badges A44C 3/00; making labels B31D 1/00; sheets temporarily attached together B42F; labelling B65C; tags attached to, or associated with, an object, in order to enable detection of the object G01V 15/00; labels on record carriers G11B 23/38); Seals; Postage or like stamps
 G09F 3/02
·  Forms or constructions (layered products B32B)
 G09F 3/03
·  ·  of security seals
 G09F 3/04
·  to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion (by a separate adhesive layer G09F 3/10)
 G09F 3/08
·  Fastening or securing by means not forming part of the material of the label itself
 G09F 3/10
·  ·  by an adhesive layer
P:120 G09F 5/00
Means for displaying samples
P:100 G09F 7/00
Signs, name or number plates, letters, numerals, or symbols (vehicle registration number plates B60R 13/00); Panels or boards (show-cards G09F 1/00; indicating arrangements for variable information G09F 9/00, G09F 11/00; illuminated signs G09F 13/00; boards for notices or posters G09F 15/00)
 G09F 7/02
·  Signs, plates, panels, or boards using readily-detachable elements bearing or forming symbols
 G09F 7/18
·  Means for attaching signs, plates, panels, or boards to a supporting structure
P:40 G09F 9/00
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F 11/00; light guides G02B 6/00; abacus G06C 1/00; slide rules G06G 1/00)
 G09F 9/30
·  in which the desired character or characters are formed by combining individual elements (panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F 1/00)
 G09F 9/302
·  ·  characterised by the form or geometrical disposition of the individual elements  [7]
 G09F 9/307
·  ·  being incandescent filaments (G09F 9/302 takes precedence; incandescent panels comprising a number of separate incandescent bodies, per se H01K 9/00)  [3,7]
 G09F 9/313
·  ·  being gas discharge devices (G09F 9/302 takes precedence; gas discharge panels comprising a number of discharge gaps, per se H01J 17/49)  [3,7]
 G09F 9/33
·  ·  being semiconductor devices, e.g. diodes (G09F 9/302 takes precedence; semiconductor integrated circuits comprising components specially adapted for emission of light, per se H01L 27/15)  [3,7]
 G09F 9/35
·  ·  being liquid crystals (G09F 9/302 takes precedence; liquid crystal materials C09K 19/00)  [3,7]
 G09F 9/37
·  ·  being movable elements (G09F 9/302 takes precedence)  [3,7]
 G09F 9/40
·  in which the desired character is selected from a number of characters arranged one beside the other, e.g. on a common carrier plate
 G09F 9/46
·  in which the desired character is selected from a number of characters arranged one behind the other
P:50 G09F 11/00
Indicating arrangements for variable information in which the complete information is permanently attached to a movable support which brings it to the display position (using static means to present variable information G09F 9/00; showcases or show-cabinets with arrangements for continuously or intermittently moving the merchandise A47F 3/00)
P:60 G09F 13/00
Illuminated signs; Luminous advertising (G09F 9/00, G09F 11/00 take precedence; control of displays in general using static means to present variable information G09G)
 G09F 13/04
·  Signs, boards, or panels, illuminated from behind the insignia
 G09F 13/06
·  ·  using individual cut-out symbols or cut-out silhouettes, e.g. perforated signs
 G09F 13/08
·  ·  using both translucent and non-translucent layers (backlighting of liquid crystal display panels G02F 1/13)
 G09F 13/12
·  ·  using a transparent mirror or other light- reflecting surface transparent to transmitted light whereby a sign, symbol, picture, or other information is visible only when illuminated
 G09F 13/14
·  ·  Arrangements of reflectors therein
 G09F 13/16
·  Signs formed of, or incorporating, reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape
 G09F 13/18
·  Edge-illuminated signs
 G09F 13/20
·  with luminescent surfaces or parts (luminescent materials C09K 11/00; light sources using luminescence F21K 2/00)
 G09F 13/22
·  ·  electroluminescent (electroluminescent light sources per se H05B 33/00)
P:110 G09F 15/00
Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
P:80 G09F 17/00
Flags; Banners; Mountings therefor (devices specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material B65H 75/34)
P:130 G09F 19/00
Advertising or display means not otherwise provided for
 G09F 19/12
·  using special optical effects (designs or pictures characterised by special light effects B44F 1/00, e.g. changing pictures B44F 1/00)
 G09F 19/22
·  Advertising or display means on roads, walls, or similar surfaces, e.g. illuminated (illuminated signs in general G09F 13/00)
P:20 G09F 21/00
Mobile visual advertising
P:30 G09F 23/00
Advertising on or in specific articles, e.g. ashtrays, letter-boxes (on or in vehicles G09F 21/00; containers, packaging-elements, or packages, with auxiliary means or provisions for displaying articles B65D)
P:10 G09F 25/00
Audible advertising (sound-recording or reproducing in general G11B; public address systems H04R 27/00)
P:0 G09F 27/00
Combined visual and audible advertising or displaying, e.g. for public address