Peroxide redox amplification imaging using manganese catalyst im
Photographic acyl acetanilide color couplers with 2,5-dioxo-1-im
Photographic dye image stabilization
Photographic material containing 3-anilino-5-pyrazolylalkylcarbo
Photographic material containing oxazolinone-2 couplers
Photographic phenolic couplers with amido coupling-off groups
Photographic silver halide emulsion and element and method of fo
Photographic silver halide emulsion containing 2-equivalent cyan
Photographic silver halide emulsions containing acylacetanilide
Plasma torch implemented air purifier
Portable personal corona discharge device for destruction of air
Portable personal corona discharge device for destruction of air
Process for dye image production on a light-sensitive silver hal
Process for forming a color image on an exposed photosensitive m
Process for forming a photographic magenta dye image
Process for forming color photographic images
Process for forming cyan dye photographic images
Production of photomasks by forming complex of silver and diazon
Purification system for tobacco-generated secondhand smoke