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GB535812A
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Colour kinematography
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US2295107A
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Method of making colored photographs
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US2272557A
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Toning photographic images
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US2272556A
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Coloring photographic images
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US2281075A
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Color photography
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US2218001A
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Process for making colored prints
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US2183661A
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Process of coloring photographic images
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US2226339A
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Three-color film and method of making same
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US2141354A
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Method of treating photographic film
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GB473993A
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Improvements in photographic films for use in colour photography and in processes for treating the same
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GB466290A
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Improvements in or relating to the mordanting of photographic silver images
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GB447412A
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Improvements in colour photography and kinematography
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US2016666A
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Colored photograph and method of making same
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