Title:
【発明の名称】熱間製管工具及びその製造方法
Document Type and Number:
Japanese Patent JP2940188
Kind Code:
B2
Inventors:
OKADA YASUTAKA
Application Number:
JP5041791A
Publication Date:
August 25, 1999
Filing Date:
February 23, 1991
Export Citation:
Assignee:
SUMITOMO KINZOKU KOGYO KK
International Classes:
B21B25/00; B21C25/00; C21D1/76; C22C38/00; C22C38/12; (IPC1-7): B21B25/00; C21D1/76; C22C38/00; C22C38/12
Attorney, Agent or Firm:
Takeshi Imai