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GB1145774A
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Illuminating apparatus for photographic printers, enlargers and the like
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US3374706A
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Variable contrast light source for condenser enlargers
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US3371575A
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Illuminating apparatus for photographic enlargers provided with interchangeable integrating bodies
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US3316804A
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Illuminating apparatus for photographic printers and enlargers with specular mirrors
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US3351766A
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Color balance computer for making color prints
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US3227039A
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Density control for photographic enlargers
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US3217594A
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Photographic printer and enlarger and light mixing device therefor
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US3209644A
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Photographic roll paper holder
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US3081670A
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Overhead optical projector
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US3077140A
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Color filter devices for photographic printers and enlargers
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US3086709A
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Density control for photographic enlargers
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GB884342A
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Illuminating apparatus for photographic printers and enlargers
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US3069971A
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Exposure control apparatus for making color prints
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US3027801A
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Exposure control device for photographic color print apparatus
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US3028483A
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Illuminating apparatus for photographic printers and enlargers
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US2949809A
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Color comparator
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US2921499A
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Automatic dodging device for photography
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US2921498A
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Electrical control device for use with photographic color enlargers and printers
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US2848923A
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Photographic easel
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US2813454A
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Autofocusing optical apparatus
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