Method of and apparatus for adding lead to steel
United States Patent 2197259

Inventors:
Hunter, Nead John
Publication Date:
04/16/1940
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Assignee:
INLAND STEEL CO
Primary Class:
420/86
Other Classes:
164/57.100, 266/216, 164/65
International Classes:
C21C7/00; C22C33/06; C22C33/00