Title:
Coupler system in electric musical instruments
United States Patent 2557133
US Patent References:
Electrical organ
- - 2233948

Solo electrical musical instrument
- - 2403664


Inventors:
Mork, Raymond P.
Publication Date:
06/19/1951
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Assignee:
BALDWIN CO
Primary Class:
84/680
Other Classes:
984/330, 84/DIG.025
International Classes:
G10H1/18