Electrical plug with safety ground element
United States Patent 3381258
US Patent References:
Electrical plug
- - 2044948

Attachment plug
- - 2484558

Electrical connector plug
- - 3134631

Pilferproof wall plug
- - 3161450


Inventors:
Becker Jr., Theodore W.
Publication Date:
04/30/1968
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Primary Class:
439/107
Other Classes:
439/362
International Classes:
H01R13/621