176601 ⎘
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 compounds with active methylene groups in rings
Sub-classes:Color photothermographic material
#2Black-and-white thermographic materials with improved image tone
#3Silver halide photographic material
#4Dye-forming coupler, silver halide photographic light-sensitive material, and method for producing an azomethine dye