VOLTAGE SELECTION ARRANGEMENT WHEREIN SAME CONTACTS SWITCH SELECTABLE D.C. PITCH POTENTIAL AND CONSTANT A.C. FOR CONTROL FUNCTION
United States Patent 3511917

Inventors:
Mallett, Alfred L.
Publication Date:
05/12/1970
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Assignee:
SEEBURG CORP
Primary Class:
84/679
Other Classes:
331/177R, 327/75, 984/377, 327/70, 902/21
International Classes:
G10H5/00; H03K5/20; G10H1/02; G10H5/06
Foreign References:
DE573253C
DE574768C




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