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GUILLIERME SOC
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GUILLIERME SOC
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Publication of FR582164ApublicationCriticalpatent/FR582164A/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
G09B15/08—Practice keyboards
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FR582164D1924-05-141924-05-14Dispositif facilitant la lecture et l'exécution des morceaux de musique
ExpiredFR582164A
(fr)