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Title:
継目無鋼管の製造方法及び継目無鋼管製造用治具
Document Type and Number:
Japanese Patent JP4356168
Kind Code:
B2
Inventors:
Taro Kanayama
Nobuhiko Morioka
Itaya Susumu
Takahiko Saeki
Hideto amabe
Application Number:
JP2000014176A
Publication Date:
November 04, 2009
Filing Date:
January 20, 2000
Export Citation:
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Assignee:
jfe Steel Corporation
International Classes:
B21B19/10; B21B45/08; B21B25/00
Domestic Patent References:
JP60006208A
JP10128427A
JP7021203U
JP6254609A
JP9239409A
JP4143006A
Attorney, Agent or Firm:
Yoshio Kosugi
Masaki Yamada