Electric switch
United States Patent 2555799
US Patent References:
Electric-arc control
- - 1531668

Circuit interrupter
- - 1796160

Switch apparatus
- - 1915621

Electrical contactor
- - 2147430

Arc quencher
- - 2381637


Inventors:
Karl, Lerstrup
Publication Date:
06/05/1951
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Assignee:
ALLIS CHALMERS MFG CO
Primary Class:
218/40
Other Classes:
218/36, 218/148
International Classes:
H01H9/44; H01H9/30