Rotatable tremulant sound producer
United States Patent 2869667
US Patent References:
Tremolo device
- - 2062515

Rotatable tremulant sound producer
- - 2489653


Inventors:
Leslie, Donald J.
Publication Date:
01/20/1959
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Assignee:
Leslie, Donald J.
Primary Class:
181/143
Other Classes:
84/739, 984/313, 84/740
International Classes:
G10H1/047; G10H1/04