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FR673323D1928-07-281928-07-28
Improved machine for the polychrome printing of all fabrics, skins, etc., from photomechanical engraving of the rollers
ExpiredFR673323A
(en)
Process and devices for rapidly and semi-automatically chemical engraving of rollers intended for printing on all fabrics, skins, etc. monochrome or polychrome photographic reproductions