Adjustable i-beam base
United States Patent 1831798
Inventors:
Alfred, Alsaker
Publication Date:
11/17/1931
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Assignee:
DELTA STAR ELECTRIC COMPANY
Primary Class:
Other Classes:
174/158R, 174/163R, 174/129B, 174/171
International Classes:
H01B17/16; H01B17/14