Electrical apparatus
United States Patent 1746977

Inventors:
Wilder, Lawrence R.
Publication Date:
02/11/1930
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Assignee:
Wilder, Lawrence R.
Primary Class:
218/99
Other Classes:
361/327, 252/578, 174/14R, 361/8, 174/17LF, 361/274.200
International Classes:
H01H33/22; H01H33/04