ELECTRONIC MUSICAL INSTRUMENT DUAL PURPOSE GATE AND KEYING CIRCUIT
United States Patent 3543281
Inventors:
Brand, John R.
Galanti, Frank
Publication Date:
11/24/1970
Assignee:
WARWICK ELECTRONICS INC
Other Classes:
984/330, 984/322, 84/702, 84/705
International Classes:
G10H1/057; G10H1/18; G10H1/02
US Patent References:
| 3446904 | KEY SYSTEM FOR ELECTRICAL MUSICAL INSTRUMENT | | | |