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FRANCOIS ALCIDE GROC
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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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FR5134D1903-02-271905-07-11
Apparatus system for demonstrating the movement of the earth around the sun
ExpiredFR5134E
(en)
New apparatus for teaching the metric system and the elements of geometry by means of hollow geometric shapes, called "apparatus of the gory school"