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MAURICE FERNAND GARIN
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MAURICE FERNAND GARIN
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Publication of FR484356ApublicationCriticalpatent/FR484356A/fr
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B21/00—Teaching, or communicating with, the blind, deaf or mute
G09B21/02—Devices for Braille writing
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FR484356D1917-01-301917-01-30Procédé et appareil pour l'impression des livres pour aveugles
ExpiredFR484356A
(fr)