DIFF Subgroup
G03C 7/28 Silver dye bleach processes; Materials therefor; Preparing or processing such materials
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes > Silver dye bleach processes; Materials therefor; Preparing or processing such materials
CPC:
Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes (diffusion transfer processes G03C8/00) > Silver dye bleach processes; Materials therefor; Preparing or processing such materials
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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