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ES137734A1
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Procedure to produce cinematographic photographs and films in one or more colors.
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ES131135A1
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Procedure for the production of polychromic fonofilm.
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ES129431A1
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Procedure for obtaining a sound film in colors.
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US2020775A
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Method of producing photographic pictures in colors
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US1956017A
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Method of indirectly producing color photographs
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CA393818A
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Coloured photographic multilayer material
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CA384755A
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Coloured photographic picture production
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CA365494A
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Coloured photographic picture production
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CA410310A
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Colour photographic image production
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CA355715A
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Colour photographic material
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CA412329A
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Colour photographic material
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CA412328A
|
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Colour photographic material
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CA359542A
|
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Multi-colour photographic material
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CA381629A
|
|
Photographic colouring material
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CA357005A
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Coloured sound film production
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CA393816A
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Photographic material
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CA479607A
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Azo dyes for color photography
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CA399753A
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Photographic bath
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CA500580A
|
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Color photographic material and processes for producing same
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CA335346A
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Production of coloured photographs
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