Catalytic activation of cobalt complex imaging by cobalt
Channeled photosensitive element
Cobalt complex amplification imaging system with blocked dye pre
Color diffusion transfer photographic elements
Color diffusion transfer photographic materials with sulfone col
Color diffusion transfer photographic materials with vinyl copol
Color diffusion transfer photographic unit
Color diffusion transfer unit with polymeric quaternary nitrogen
Color light-sensitive material with spontaneously developable si
Color photographic light-sensitive material containing +-alkyl s
Color photographic materials with spiro heterocyclic stabilizing