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Title:
電縫鋼管の管端部切削加工方法
Document Type and Number:
Japanese Patent JP5831214
Kind Code:
B2
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Inventors:
Eki Motoaki
Application Number:
JP2011284683A
Publication Date:
December 09, 2015
Filing Date:
December 27, 2011
Export Citation:
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Assignee:
jfe Steel Corporation
International Classes:
B23B5/16
Domestic Patent References:
JP2004174608A
JP2172602A
Foreign References:
US5943927
US20110167887
Attorney, Agent or Firm:
Kenichiro Ochiai
Eiichi Kobayashi



 
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