Title:
Apparatus for and method of production of steel
United States Patent 3301664
Inventors:
Hall, Thomas A.
Publication Date:
01/31/1967
Export Citation:
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Assignee:
YOUNGSTOWN SHEET AND TUBE CO
Primary Class:
75/550
Other Classes:
266/158, 266/901
International Classes:
C21C5/32; C21C5/56; C21C5/00; C21C5/30
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US Patent References:
3231369Method of making steel
3060014Multi-furnace for refining metal
2818247Steel making apparatus