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B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
B41M5/00—Duplicating or marking methods; Sheet materials for use therein
B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
FR1156532D1956-07-241956-07-24
Process for copying and multiplying documents, chemical combinations and various media for its implementation
ExpiredFR1156532A
(en)