Photoelectric organ
United States Patent 3214507

Inventors:
Williams, Richard E.
Publication Date:
10/26/1965
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Assignee:
SCOPE INC
Primary Class:
Other Classes:
84/724, 984/358
International Classes:
G10H3/06; G10H3/00
US Patent References:
3003383Percussion system
3073204Percussion system for an electronic musical instrument
Foreign References:
GB446352A