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Patent Searching and Data


Title:
継目無鋼管の製造方法
Document Type and Number:
Japanese Patent JP4352997
Kind Code:
B2
Inventors:
Shigeru Nakamura
Nobuto Murao
Yuji Arai
Application Number:
JP2004160923A
Publication Date:
October 28, 2009
Filing Date:
May 31, 2004
Export Citation:
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Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
B21B19/04; B21B45/00; C21D1/52; C21D9/00; C22C38/00; C22C38/18; C22C38/32
Domestic Patent References:
JP11050148A
JP6248360A
Attorney, Agent or Firm:
Hidetoshi Ueba
Tadashi Takezoe
Miho Ito