Contrast enhancement and small detail blending of photographic i
Contrast of electrostatic latent images with a light flooding st
Contrasty light-sensitive silver halide material containing a hy
Control means for molecular sieve on-board oxygen generator
Control valve structure for an oxygen machine
Control valve structure for an oxygen machine
Control valve with axial sealing
Controlled angle viewing screens by interference techniques
Controlling atmospheres in containers
Conversion solutions for planographic masters
Converted-halide photographic emulsions and elements having comp
Convoluted surface hollow fiber membranes
Cooler using filter with dehumidifying function
Copolymer subbing material for photographic elements
Copper physical development using heterocyclic ligand copper(I)
Copying in color
Core unit of a dehumidifier
Corona discharge device for destruction of airborne microbes and
Corona ground element
Corona-discharge air mover and purifier for packaged...