DIFF Subgroup
G03C 1/49827 Full Title
Photosensitive materials (photosensitive materials for multicolour processes G03C7/00; for diffusion transfer processes G03C8/00; photosensitive glass C03C4/04) > Silver salt compositions other than silver halide emulsions; Photothermographic systems > Photothermographic systems, e.g. dry silver