Title:
Electrical musical instrument with conductive tune sheet
United States Patent 3376778
US Patent References:
Indicator for musical instruction
- - 1400947
Electric data processor
- - 2598155
/2943400.html
- - 2943400
Test scoring, recording, and teaching apparatus
- - 3057082
Electrically operated musical device
- - 3115803
Indicator for musical instruction
- - 1400947
Electric data processor
- - 2598155
/2943400.html
- - 2943400
Test scoring, recording, and teaching apparatus
- - 3057082
Electrically operated musical device
- - 3115803
Inventors:
Omar, Musser Clair
Publication Date:
04/09/1968
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Export Citation:
Primary Class:
Other Classes:
84/470R, 84/DIG.007
International Classes:
G09B15/04; G09B15/02
US Patent References:
| 3256765 | Music teaching device |
Foreign References:
| FR442572A | ||||
| GB451421A | ||||
| GB646212A |