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Publication of FR423857ApublicationCriticalpatent/FR423857A/fr
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
B41L7/02—Apparatus for directly duplicating from hectographic originals, i.e. for obtaining copies in mirror image by passing original and copy-sheet or -web between rollers
B41L7/04—Apparatus for directly duplicating from hectographic originals, i.e. for obtaining copies in mirror image by passing original and copy-sheet or -web between rollers with means for guiding original or copy-sheet or -web
FR423857D1910-12-191910-12-19Perfectionnements aux rouleaux de papier pour machines à copier
ExpiredFR423857A
(fr)