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US2614452A
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Light-dividing system
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GB638765A
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Improvements in multi-layer stripping films and process for the production thereof
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GB682941A
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Improvements in photographic multi-layer stripping films and process for the production thereof
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GB638308A
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Process for obtaining photographic colour separation records
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Improvements in or relating to step-contact film-printing machine
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GB645698A
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Improvements in cinematographic colour cameras
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Apparatus for the continuous liquid treatment of flexible materials in strip-like form having means for conserving liquid
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CA470471A
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Colour photography
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CA470674A
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Colour photography
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Production of multi-coloured motion picture films carrying sound tracks
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CA505590A
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Light-dividing systems
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