Coloured photographic picture production

Coloured photography

Coloured picture production

Coloured sound film production

Coloured sound film production

Colourphotographic recording material

Combination of electrography and manifold imaging

Combination of photosensitive elements for use in radiography

Combination of photosensitive elements suited for use in...

Combination of photosensitive materials suited for use in...

Combination specular-diffuse projection device and method

Combined motion picture and sound record

Complex film for obtaining screens used in serigraphy

Composite colour photography

Composite colour photography

Composite colour photography

Composite colour photography

Composite photographic material including a flexuous...

Composition and method of restoration of faded color...

Composition containing nitrocellulose, red i dye and...