Oscillating die and punch press combination
United States Patent 3122042

Inventors:
Littell, Frederick M.
Wiig, Chester M.
Publication Date:
02/25/1964
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Assignee:
LITTELL MACHINE CO F J
Primary Class:
Other Classes:
83/244, 83/216, 83/556
International Classes:
B21D28/06; B23D15/06; B21D28/02; B23D15/00
US Patent References:
2920521Variable angle strip cutting machine