Metal powder
United States Patent 2354727

Inventors:
John, Wulff
Publication Date:
08/01/1944
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Assignee:
John, Wulff
Primary Class:
75/351
Other Classes:
75/353, 209/38, 241/24.140, 419/30, 241/15
International Classes:
B22F9/04; B22F9/02