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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
G09B27/00—Planetaria; Globes
G09B27/02—Tellurions; Orreries
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FR593350D1925-01-291925-01-29Appareil pour la démonstration du mouvement des astres
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