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PCE
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DIFF Subgroup
G03C 1/33

Spot-preventing agents

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Photosensitive materials > Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein > with non-macromolecular additives > Spot-preventing agents

CPC:

Photosensitive materials (photosensitive materials for multicolour processes G03C7/00; for diffusion transfer processes G03C8/00; photosensitive glass C03C4/04) > Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein (catalytic amounts of silver halide in dry silver systems G03C1/494) > with non-macromolecular additives (G03C1/047 takes precedence; ) > Spot-preventing agents

No child classifications to compare. This is a leaf node in both IPC and CPC.