Title:
金属管の製造方法
Document Type and Number:
Japanese Patent JP6414429
Kind Code:
B2
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Inventors:
Maruta Ken
Application Number:
JP2014196616A
Publication Date:
October 31, 2018
Filing Date:
September 26, 2014
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
B21J5/08; B21C37/16; B21J1/06
Domestic Patent References:
| JP58084633A |
Attorney, Agent or Firm:
Ascend Patent Business Corporation