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PCE
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DIFF Subgroup
G03C 7/34

Couplers containing phenols (G03C7/327, G03C7/333 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Couplers containing phenols

CPC: Couplers containing phenols (G03C7/327, G03C7/333 take precedence)

Full Title

Full titles differ between systems:

IPC:

Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes > Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials > Colour-coupling substances > Couplers containing phenols

CPC:

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 phenols (G03C7/327, G03C7/333 take precedence)

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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