CPC Subgroup
G03C 7/36 Couplers containing compounds with active methylene groups (G03C7/327, G03C7/333 take precedence)
Full Title
Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes (diffusion transfer processes G03C8/00) > Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials > Colour coupling substances (G03C7/305, G03C7/388 take precedence; ) > Couplers containing compounds with active methylene groups (G03C7/327, G03C7/333 take precedence)
4 direct subcodes
Child Classifications
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- G03C 7/38 in rings