Document Type and Number:
Japanese Patent JPS4972162
Kind Code:
A
Application Number:
JP11366172A
Publication Date:
July 12, 1974
Filing Date:
November 13, 1972
Export Citation:
International Classes:
B21D31/00; B21H1/00; B21H7/00; B44C1/24
Domestic Patent References:
| JP42011234A |