Title:
KEY SYSTEM FOR ELECTRICAL MUSICAL INSTRUMENT
United States Patent 3446904
Inventors:
Brand, John R.
Plunkett, Bradley J.
Plunkett, Bradley J.
Publication Date:
05/27/1969
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Export Citation:
Assignee:
WARWICK ELECTRONICS INC
Primary Class:
Other Classes:
84/702, 984/339
International Classes:
G10H1/22; G10H3/00