Title:
埋設拡管用油井管
Document Type and Number:
Japanese Patent JP3562461
Kind Code:
B2
Inventors:
Shigeru Nakamura
Shunji Abe
Shunji Abe
Application Number:
JP2000330684A
Publication Date:
September 08, 2004
Filing Date:
October 30, 2000
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
B21D41/02; C22C38/00; C22C38/06; C22C38/50; (IPC1-7): C22C38/00; C22C38/06; C22C38/50
Domestic Patent References:
| JP1259125A | ||||
| JP9111344A |
Attorney, Agent or Firm:
Shoichi Hirose