Title:
Electrical apparatus
United States Patent 2198488

Inventors:
Smith, Harry F.
Publication Date:
04/23/1940
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Assignee:
GEN MOTORS CORP
Primary Class:
160/5
Other Classes:
200/61.040, 49/21, 318/475, 318/256, 318/483, 318/454, 318/446
International Classes:
E06B9/70; E06B9/68