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OMER DURIEU
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OMER DURIEU
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Application grantedgrantedCritical
Publication of FR469239ApublicationCriticalpatent/FR469239A/en
B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
B43L1/02—Slates
FR469239D1913-05-141913-05-14
Process for the mechanical slating of sheets of cardboard, imitation wood, canvas, plain papers, canvas papers, etc.
ExpiredFR469239A
(en)