DIFF Subgroup
G03C 5/264 Full Title
Photographic processes or agents therefor; Regeneration of such processing agents (multicolour processes or agents therefor G03C7/00; diffusion-transfer processes or agents therefor G03C8/00; stereo-photographic processes G03C9/00; photomechanical processes G03F) > Processes using silver-salt-containing photosensitive materials or agents therefor (physical development G03C5/58)
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.