Electrical musical instrument
United States Patent 1956350

Inventors:
Laurens, Hammond
Publication Date:
04/24/1934
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Assignee:
Laurens, Hammond
Primary Class:
84/601
Other Classes:
310/170, 84/DIG.004, 84/715, 200/17R, 84/433, 84/DIG.025, 307/1, 984/355, 307/27
International Classes:
G10H3/00