Composite developer-etch composition for chromium-plated lithogr

Composite discharge electrode

Composite image design method

Composite, mask-forming, photohardenable elements

Conduit and method for processing webs with a liquid solution

Continuous gas separation in an open system

Continuous tone diazotype process

Contrast enhancement and small detail blending of photographic i

Controlled angle viewing screens by interference techniques

Converted-halide photographic emulsions and elements having comp

Copolymer subbing material for photographic elements

Copper physical development using heterocyclic ligand copper(I)

Corona discharge device for destruction of airborne microbes and

Corona ground element

Corona-discharge air mover and purifier for packaged...

Curtain coating method

Cyclopropenone vesicular imaging composition, element and proces