Heating device
United States Patent 2314865

Inventors:
Bierwirth, Rudolph A.
Publication Date:
03/30/1943
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Assignee:
RCA CORP
Primary Class:
219/670
Other Classes:
336/223, 336/199, 219/235, 219/632, 336/82, 65/DIG.004, 219/673, 219/677, 336/231, 336/57
International Classes:
H05B6/02