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B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
B41L7/00—Apparatus for directly duplicating from hectographic originals, i.e. for obtaining copies in mirror image
FR463977D1913-10-241913-10-24Machine à copier les lettres dans un copie de lettres sans préparation hygrométrique des feuilles de ce dernier
ExpiredFR463977A
(fr)