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Subclass TR
TR1-1050 | Photography | |
TR250-265 | Cameras | |
TR287-500 | Photographic processing. Darkroom technique | |
TR504-508 | Transparencies. Diapositives | |
TR510-545 | Color photography | |
TR550-581 | Studio and laboratory | |
TR590-620 | Lighting | |
TR624-835 | Applied photography Including artistic, commercial, medical photography, photocopying processes | |
TR845-899 | Cinematography. Motion pictures | |
TR925-1050 | Photomechanical processes |