Production of gears or the like
United States Patent 2325989
Inventors:
Tryon, William A.
Publication Date:
08/03/1943
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Export Citation:
Assignee:
TRAYER PRODUCTS INC
Primary Class:
Other Classes:
72/363, 72/374, 72/364, 76/107.100
International Classes:
B21K5/20; B21K5/00