Variable electrical resistor and switch
United States Patent 1930980
Inventors:
Maibohm, Harry C.
Publication Date:
10/17/1933
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Assignee:
Maibohm, Harry C.
Primary Class:
Other Classes:
338/175, 338/172, 200/18, 200/19.010, 200/7
International Classes:
H01C10/36; H01C10/00