G
SECTION G — PHYSICS
  
INSTRUMENTS
 G03
PHOTOGRAPHY; CINEMATOGRAPHY; ELECTROGRAPHY
 G03B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; preparing or processing photosensitive material G03C, G03D)
 G03B

Note(s)

So far as processes are concerned, this sub-class covers only processes characterised by the use or manipulation of apparatus classifiable per se in this sub-class.


 G03C
PHOTOSENSITIVE COMPOSITIONS OR BASES CARRYING THEM; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in G03B; electrography, electrophotography, magnetography G03G)

 G03D
APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR (chemical processes for photographic materials G03C; electrographic, electrophotographic, or magnetographic methods or apparatus G03G)

 G03F
PHOTOMECHANICAL PRODUCTION OF PRINTING SURFACES; ORIGINALS THEREFOR (phototype composing apparatus B41B; electrography, sensitive layers or processes therefor G03G)

 G03G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY (thermoplastic recording of information G11B, G11C; thermoplastic recording of television signals H04N 5/82)
 G03G

Note(s)

  1. This sub-class deals with the production of permanent directly-visible pictures in conformity with an original picture or document, using an imagewise distribution of an electric or magnetic quantity, such as a charge pattern, an electric conductivity pattern, or a magnetic pattern.
  2. The production of pictures by heat patterns exclusively, not using an electrostatic or magnetic pattern, is classified in group B41M 5/00.
  3. The production of prints by transferring ink from a printing form to a printing surface, without physical contact and using the force of an electrostatic field, is dealt with in sub-class B41M.