Title:
Method of and material for treating metal
United States Patent 2008939

Inventors:
Tufts, John L.
Publication Date:
07/23/1935
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Assignee:
Tufts, John L.
Primary Class:
72/42
Other Classes:
252/387, 252/384, 252/380, 508/162, 148/246, 72/362, 72/46
International Classes:
C23D3/00