Polyphase motor protecting switch
United States Patent 3005075
Inventors:
Jakob, Ellenberger
Publication Date:
10/17/1961
Assignee:
ELLENBERGER & POENSGEN
Other Classes:
337/102, 337/82
International Classes:
A41F9/02; H01H71/16; H01H71/74; A41F9/00; H01H71/12; H01H71/00