Title:
ダブルショルダ型ツールジョイント
Document Type and Number:
Japanese Patent JP2007530875
Kind Code:
A
Inventors:
Matsushima Jun
Hiroshi Sakura
Mulberry Takeshi No
Hiroshi Sakura
Mulberry Takeshi No
Application Number:
JP2006534490A
Publication Date:
November 01, 2007
Filing Date:
March 30, 2005
Export Citation:
Assignee:
NKK Seamless Steel Pipe Co., Ltd.
International Classes:
F16L15/04; E21B17/042; F16L15/06
Domestic Patent References:
| JPS58110793A | 1983-07-01 | |||
| JPS6347588A | 1988-02-29 | |||
| JPS60146988A | 1985-08-02 | |||
| JPH07260053A | 1995-10-13 |
Attorney, Agent or Firm:
Tadao Hirata