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Title:
インナーロール式電縫管成形機
Document Type and Number:
Japanese Patent JP3609940
Kind Code:
B2
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Inventors:
Takeshi Kitasato
Osamu Nakagawa
Application Number:
JP9541998A
Publication Date:
January 12, 2005
Filing Date:
March 23, 1998
Export Citation:
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Assignee:
Nippon Steel Corporation
Nippon Steel Plant Design Co., Ltd.
International Classes:
B21C37/08; B21D5/12; B23K13/00; (IPC1-7): B21D5/12; B21C37/08; B23K13/00
Domestic Patent References:
JP53056148A
JP59223104A
Attorney, Agent or Firm:
Fujio Nakamae



 
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