Document Type and Number:
Japanese Patent JPS5027818
Kind Code:
B1
Application Number:
JP8852268A
Publication Date:
September 10, 1975
Filing Date:
December 03, 1968
Export Citation:
International Classes:
B21C37/18; B21D31/00; (IPC1-7): B21D31/00
Domestic Patent References:
| JP30001713A |