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Aeolian Co
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Aeolian Co
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Application filed by Aeolian CofiledCriticalAeolian Co
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Publication of FR655679ApublicationCriticalpatent/FR655679A/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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Engineering & Computer Science
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Business, Economics & Management
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Physics & Mathematics
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Educational Administration
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Educational Technology
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General Physics & Mathematics
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FR655679D1928-06-131928-06-13Dispositif pour dicter la musique
ExpiredFR655679A
(fr)