Title:
管切断方法および装置ならびに分岐管の撤去工法
Document Type and Number:
Japanese Patent JP4707472
Kind Code:
B2
Inventors:
Takeki Oura
Koichi Tanaka
Atsushi Maeda
Koichi Tanaka
Atsushi Maeda
Application Number:
JP2005174426A
Publication Date:
June 22, 2011
Filing Date:
June 15, 2005
Export Citation:
Assignee:
Seibu Gas Co., Ltd.
Shinwa Sangyo Co., Ltd.
Shinwa Sangyo Co., Ltd.
International Classes:
F16L41/06; B23D21/04; F16L1/024
Domestic Patent References:
| JP2002295724A |
Attorney, Agent or Firm:
Yoshihiro Morimoto
Toshiji Sasahara
Yohei Harada
Toshiji Sasahara
Yohei Harada