Title:
既設管切削工法に用いる管矯正具
Document Type and Number:
Japanese Patent JP4034577
Kind Code:
B2
Inventors:
Toshiyuki Sato
Application Number:
JP2002039894A
Publication Date:
January 16, 2008
Filing Date:
February 18, 2002
Export Citation:
Assignee:
Mizuken Co., Ltd.
Okamoto Co., Ltd.
Okamoto Co., Ltd.
International Classes:
B23D21/00; F16L55/00
Domestic Patent References:
| JP2001099381A | ||||
| JP8118077A | ||||
| JP9003880A | ||||
| JP11287385A | ||||
| JP5192793A | ||||
| JP11325377A |
Attorney, Agent or Firm:
Yoshinobu Yamamura