ELECTRICAL MUSICAL INSTRUMENT
United States Patent 3539701
US Patent References:
Musical instrument
- - 2471534
Electrical musical instrument
- - 2514490
Musical instrument employing continuously moving members
- - 2586664
Perspective sound systems
- - 2714633
Automatic tuning device for polyphonic instruments
- - 2919620
Musical instrument
- - 2471534
Electrical musical instrument
- - 2514490
Musical instrument employing continuously moving members
- - 2586664
Perspective sound systems
- - 2714633
Automatic tuning device for polyphonic instruments
- - 2919620
Inventors:
Milde, Ursula A.
Publication Date:
11/10/1970
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Assignee:
Ursula, Milde A.
Primary Class:
Other Classes:
984/378
International Classes:
G10H3/12; G10H5/00; G10L21/00; G10H3/00; G10H3/04