Combination switch and rheostat
United States Patent 2014637
Inventors:
Schellenger, Newton C.
Publication Date:
09/17/1935
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Assignee:
Chicago, Telephone Supply Compa
Primary Class:
Other Classes:
200/453, 29/513, 29/509, 292/300
International Classes:
H01C10/36; H01C10/00