Title:
A torsion processing method of a metal tube
Document Type and Number:
Japanese Patent JP6144519
Kind Code:
B2
More Like This:
| JP3027186 | [Name of invention] Metal square pipe manufacturing equipment |
| JPS59179237 | MOLDING DIE |
Inventors:
Shotaro Sano
Shigeo Yura
Kenjiro Yamamoto
Shigeo Yura
Kenjiro Yamamoto
Application Number:
JP2013073222A
Publication Date:
June 07, 2017
Filing Date:
March 29, 2013
Export Citation:
Assignee:
Nittetsu Sumikin Building Materials Co., Ltd.
International Classes:
B21D11/14; B21D17/04
Domestic Patent References:
| JP58196124A | ||||
| JP57142715A | ||||
| JP61259838A | ||||
| JP7080556A | ||||
| JP48102285A |
Foreign References:
| US3533267 |
Attorney, Agent or Firm:
Yasuhiko