Progressive heat treating
United States Patent 2329188

Inventors:
Denneen, Francis S.
Dunn, William C.
Publication Date:
09/14/1943
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Assignee:
OHIO CRANKSHAFT CO
Primary Class:
148/574
Other Classes:
148/656, 266/127, 250/234, 134/57R, 266/90, 266/129, 266/87, 219/650, 250/223R
International Classes:
H05B6/06; H05B6/10