Vibrato apparatus
United States Patent 3069958
US Patent References:
Electronic organ
- - 2287105

Vibrato producing loud speaker
- - 2831051


Inventors:
Donald, Arsem Alvan
Osborne, Fred H.
Laurien, Ira M.
Flateau, Christian L.
Publication Date:
12/25/1962
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Assignee:
WURLITZER CO
Primary Class:
84/706
Other Classes:
984/313, 84/705, 181/143
International Classes:
G10H1/047; G10H1/04