Title:
MULTIVIBRATOR FREQUENCY DIVIDER CHAIN FOR MUSICAL INSTRUMENT EMPLOYING A MASTER OSCILLATOR WHICH IS STEP FREQUENCY ADJUSTABLE AND A TWIN-T VIBRATO OSCILLATOR
United States Patent 3490327

Inventors:
Volpe, Ignatius D.
Publication Date:
01/20/1970
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Assignee:
EXCELSIOR ACCORDIANS INC
Primary Class:
84/706
Other Classes:
331/178, 331/179, 984/381, 331/51, 84/675, 331/48
International Classes:
G10H5/06; H03B19/14; G10H5/00; H03B19/00; G10H5/06; G10H1/02
US Patent References:
3283057Keyboard oscillator circuit
3358068Automatic rhythm device




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