Safety appliances for mine locomotives
United States Patent 2777917
US Patent References:
Safety device
- - 1469652

Cable splice
- - 1646660

Trolley wire tap
- - 2475352

Electrical connector
- - 2532454


Inventors:
Whitfield, Edward C.
Publication Date:
01/15/1957
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Assignee:
Jean, Cameron Whitfield
Augustus, Whitfield C.
Primary Class:
337/193
Other Classes:
337/278, 439/805, 337/235, 439/784, 337/246
International Classes:
B60M7/00
Foreign References:
FR19333A
FR468084A