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.)
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
Landscapes
Engineering & Computer Science
(AREA)
Multimedia
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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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Theoretical Computer Science
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Accessory Devices And Overall Control Thereof
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