Title:
Die apparatus
United States Patent 2591108
Inventors:
Vigneault, Oswald R.
Small, Douglas M.
Publication Date:
04/01/1952
Export Citation:
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Assignee:
PRODUCTION TOOL AND DIE CO INC
Primary Class:
72/336
Other Classes:
72/344, 72/347, 72/426
International Classes:
B21D22/02; B21D22/00
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US Patent References:
2331490Blanking and forming die
2270186Film drawing and trimming machine
2177027Die for forming and knurling sheet metal can tops
1904920Apparatus for forming sheet metal caps
1884708Apparatus for forming sheet metal caps
1270933N/A
0913841N/A
0798530N/A