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Recording deformations in image resulting from colour¹printing on metal boxes
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Mechanical device for determining the image distortion appearing in multicoloured impressions of pressed metal boxes and for plotting the corresponding correction curves
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Contact printing apparatus for the production of circular reproductions from normal photographic originals
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Photomechanical contact device
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Photo-mechanic contact apparatus destined to correct the figure deformation of a metallic box after swaging
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DEVICE FOR CONTINUOUS CONTACT EXPOSURE OF LIGHT-SENSITIVE MATERIAL BY A SLOT-SHAPED LIGHT SOURCE
