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NICOLAS ROGER FR
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NICOLAS ROGER FR
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Application filed by NICOLAS ROGER FRfiledCriticalNICOLAS ROGER FR
Priority to FR7018053ApriorityCriticalpatent/FR2095170B2/fr
Priority to DE19702031150prioritypatent/DE2031150C3/de
Publication of FR2095170A2publicationCriticalpatent/FR2095170A2/fr
Application grantedgrantedCritical
Publication of FR2095170B2publicationCriticalpatent/FR2095170B2/fr
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
G09B23/14—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for acoustics