Document Type and Number:
Japanese Patent JPS4941396
Kind Code:
B1
Abstract:
A method and means for punching includes the use of a resilient washer-like member as a punch tip.
Application Number:
JP11556770A
Publication Date:
November 08, 1974
Filing Date:
December 22, 1970
Export Citation:
International Classes:
B26F1/14; B21D28/34; (IPC1-7): B26F1/14