Electrically-heated tool
United States Patent 1363473

Inventors:
Frank, Kuhn
Thomas, Lawrence E.
Spiess, Jules G.
Publication Date:
12/28/1920
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Assignee:
AMERICAN ELECTRICAL HEATER CO
Primary Class:
219/221
Other Classes:
219/238
International Classes:
B23K3/03; B23K3/02