United States Patent 3317072
Inventors:
Zavertnik, Marshall G.
Farina, Joseph J.
Linne, George F.
Publication Date:
05/02/1967
Assignee:
KILLARK ELECTRIC MFG COMPANY
Other Classes:
220/327, 290/1R, 220/378, 220/3.900
International Classes:
H02B1/28; H02B1/00