Circuit controlling device
United States Patent 2044080

Inventors:
Kemper, Charles R.
Publication Date:
06/16/1936
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Assignee:
Kemper, Charles R.
Primary Class:
338/100
Other Classes:
338/153, 200/86R, 73/172, 338/199, 338/114, 200/61.080
International Classes:
H01B7/10