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PILLETTE DANIEL
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PILLETTE DANIEL
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Application filed by PILLETTE DANIELfiledCriticalPILLETTE DANIEL
Priority to FR7114053ApriorityCriticalpatent/FR2134789A5/fr
Application grantedgrantedCritical
Publication of FR2134789A5publicationCriticalpatent/FR2134789A5/fr
G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
G09B15/00—Teaching music
G09B15/02—Boards or like means for providing an indication of notes
G09B15/04—Boards or like means for providing an indication of notes with sound emitters