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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
G09B27/04—Star maps
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FR753322D1933-03-301933-03-30Appareil propre à l'étude de la cosmographie élémentaire
ExpiredFR753322A
(fr)