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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
G09B27/08—Globes
Landscapes
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FR522327A1920-08-121920-08-12Globe terrestre avec dispositif pour montrer l'action du magnétisme terrestre
ExpiredFR522327A
(fr)