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Publication of FR804909ApublicationCriticalpatent/FR804909A/en
B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
B41M3/008—Sequential or multiple printing, e.g. on previously printed background; Mirror printing; Recto-verso printing; using a combination of different printing techniques; Printing of patterns visible in reflection and by transparency; by superposing printed artifacts
FR804909D1935-04-131936-04-11
Process for the production of envelopes decorated with illustrations or images, for letters and the like
ExpiredFR804909A
(en)