PLURAL MODE AUTOMATIC BASS NOTE SYSTEM FOR MUSICAL CHORDS WITH AUTOMATIC RHYTHM DEVICE
United States Patent 3548066

Inventors:
Freeman, Alfred B.
Publication Date:
12/15/1970
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Assignee:
Freeman, Alfred B.
Primary Class:
84/715
Other Classes:
84/713, 984/349, 84/DIG.022
International Classes:
G10H1/38; G10H5/02; G10H1/00




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