Document Type and Number:
Japanese Patent JPS6420901
Kind Code:
U
Application Number:
JP11519187U
Publication Date:
February 01, 1989
Filing Date:
July 28, 1987
Export Citation:
International Classes:
B21B19/02; (IPC1-7): B21B19/02
Domestic Patent References:
| JPS60261606A | 1985-12-24 |