Terminal for heating furnaces
United States Patent 2809223
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Inventors:
Stevenson, Cary H.
Publication Date:
10/08/1957
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Assignee:
LINDBERG ENGINEERING COMPANY
Primary Class:
373/117
Other Classes:
338/234, 219/553, 439/874, 338/276, 219/426
International Classes:
H05B3/62
US Patent References:
1367341Electric heating unit
1733530Terminal post for electric heating elements
2125075Electrical heating element
2615060Crucible for the purification of molten substances
2694740Pot type furnace for molten metal
2735881