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Negative holder for photographic printing machines
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Preregistering means for photocomposer printing plates
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Plate holder for photographic printing machines
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Negative holder for photographic printing machines
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Photographic printing apparatus
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Photographic printing apparatus
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Photographic printing apparatus
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Precision adjusting and registering mechanism for photographic-printing and other machines
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Holding and supporting device for printing or print-receiving elements or the like
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Vacuum pressure device and mask
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Photographic-printing apparatus
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Exposure-controlling mechanism for photographic apparatus
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Photographic-printing apparatus
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Apparatus for positioning the printing plates on the plate holders of photographic-pring machines
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Photographic-printing apparatus
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Photographic-printing apparatus
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Photographic-projection printing apparatus
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Photographic-printing apparatus
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Electromagnetic clutch and brake
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DE351254C
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Photographic printing device
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