Title:
【発明の名称】継目無鋼管の製造方法
Document Type and Number:
Japanese Patent JP2560412
Kind Code:
B2
Inventors:
ODA TATSUHARU
HATANAKA MASAYUKI
HATANAKA MASAYUKI
Application Number:
JP11527588A
Publication Date:
December 04, 1996
Filing Date:
May 11, 1988
Export Citation:
Assignee:
NIPPON KOKAN KK
International Classes:
B21B17/02; B21B17/14; B21B19/10; B21B23/00; (IPC1-7): B21B23/00; B21B17/02; B21B19/10
Domestic Patent References:
| JP57168715A | ||||
| JP57121811A |