Title:
Punch assembly
United States Patent 3335627


Inventors:
Frans, Smelts Gerard Gaston
Application Number:
US36228964A
Publication Date:
08/15/1967
Filing Date:
04/24/1964
Assignee:
PIERCE ALL MFG LTD
Primary Class:
Other Classes:
83/588, 83/698.91
International Classes:
B21D28/34; B21D45/00
View Patent Images:
US Patent References:
2808108Adjustable perforating punch assembly1957-10-01
2191836Self-cleaning punch1940-02-27
2108619Piercing die1938-02-15
1151032N/A1915-08-24