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Expired
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Stanley Herbert Cheffins
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Individual
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Individual
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Publication of GB190709565ApublicationCriticalpatent/GB190709565A/en
Manufacture Or Reproduction Of Printing Formes
(AREA)
Abstract
9565. Cheffins, S. H. April 24. Underlays and make - ready arrangements.- Printing-plates are formed with relief surfaces to avoid the use of underlays by applying a proof from the original engraving on the back of the plate, removing by means of a routing-tool the. metal from the parts corresponding to the lights, interposing soft paper on the top, and then applying' pressure so that the parts undermined are pressed below the upper surface of the plate.
GB190709565D1907-04-241907-04-24Improvements relating to Printing Surfaces.
ExpiredGB190709565A
(en)