Title:
Die
United States Patent 1336388


Inventors:
Youngberg, Chester W.
Application Number:
US28071119A
Publication Date:
04/06/1920
Filing Date:
03/05/1919
Assignee:
Youngberg, Chester W.
Primary Class:
Other Classes:
72/478, 248/68.1
International Classes:
B21D37/02
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