Diffusion transfer color products and processes employing silver

Diffusion transfer color products and processes with substituted

Diffusion transfer elements comprising color-providing compounds

Diffusion transfer photographic materials with color developer s

Diffusion transfer processes and elements using or containing in

Direct alpha to X phase conversion of metal-free phthalocyanine

Doped TiO.sub.2 electrophotographic photosensitive materials

Drum cleaning method and apparatus for electrostatography

Dual layer electrophotographic recording material

Dual layer electrophotographic recording material

Dual-layered photoreceptor use in electrophotography

Duplicating process utilizing ion modulating means as the image

Durable carrier coating compositions comprising polysulfone

Dust neutralizing and floculating system

Dye free, spectrally sensitive silver halide layers in diffusion

Dye sensitized photoconductive material

Dye-amplified imaging process