Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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COHEN VICTOR FR
Original Assignee
COHEN VICTOR FR
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Application filed by COHEN VICTOR FRfiledCriticalCOHEN VICTOR FR
Priority to FR7205652ApriorityCriticalpatent/FR2182598B2/fr
Publication of FR2182598A2publicationCriticalpatent/FR2182598A2/fr
Application grantedgrantedCritical
Publication of FR2182598B2publicationCriticalpatent/FR2182598B2/fr
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B19/00—Teaching not covered by other main groups of this subclass