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G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B11/00—Teaching hand-writing, shorthand, drawing, or painting
G09B11/04—Guide sheets or plates; Tracing charts
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FR366311D1906-05-171906-05-17Perfectionnements aux gabarits pour l'enseignement de l'écriture
ExpiredFR366311A
(fr)