Title:
PAPER TAPE PUNCH UNIT
Document Type and Number:
Japanese Patent JPS5277799
Kind Code:
A
Abstract:
PURPOSE: Punching performance and service life are improved by covering the tip part of a punch by a film of carbide, oxide, nitrode, boride, etc. or more than two of these.
More Like This:
| WO/1999/051406 | PUNCHING AND BINDING MACHINE |
| WO/2003/004196 | DIE PRESS WITH INTEGRAL COVER AND GUIDES AND IMPROVED DIE FEED SYSTEM |
Inventors:
NAKAGAWA TETSUO
Application Number:
JP15423075A
Publication Date:
June 30, 1977
Filing Date:
December 24, 1975
Export Citation:
Assignee:
SUWA SEIKOSHA KK
International Classes:
B26D7/00; B26F1/00; G06K1/02; G06K1/10; (IPC1-7): B26F1/00; G06K1/02