Annealing furnace
United States Patent 2009856

Inventors:
Otis, Albert N.
Mcfarland, James L.
Publication Date:
07/30/1935
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Assignee:
GEN ELECTRIC
Primary Class:
432/45
Other Classes:
266/254, 34/66, 266/92, 266/102, 432/8, 432/82, 34/560, 432/246, 432/59, 266/111
International Classes:
C21D9/56