ELECTRONIC MUSICAL INSTRUMENT SYSTEM FOR SOUNDING VOICES REITERATIVELY IN ALTERNATION
United States Patent 3549777
Inventors:
Bunger, David A.
Publication Date:
12/22/1970
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Assignee:
BALDWIN CO D H
Primary Class:
Other Classes:
984/343
International Classes:
G10H1/30; G10H1/26; G10H5/00; G10H1/02