Base for portable lamps
United States Patent 1490978

Inventors:
Lent, Wilmar F.
Carmichael, Andrew J.
Greist, Walter C.
Publication Date:
04/22/1924
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Assignee:
GREIST MFG CO
Primary Class:
248/687
Other Classes:
362/414, 248/126
International Classes:
F21V21/00; F21V21/06