Acoustic vibrato device for electronic organ
United States Patent 2780302
US Patent References:
/0073719.html
- - 0073719

/0360857.html
- - 0360857

Tremolo device
- - 2062515

Vibrato producing means for musical instruments
- - 2412212


Inventors:
George, Thomas J.
Publication Date:
02/05/1957
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Assignee:
George, Thomas J.
Primary Class:
181/143
Other Classes:
84/739, 84/740
International Classes:
H04R1/32