Title:
【発明の名称】推進工事における地中障害物除去工法
Document Type and Number:
Japanese Patent JP2781845
Kind Code:
B2
Inventors:
Akio Goto
Koji Fujimura
Oku Toshiaki
Koji Fujimura
Oku Toshiaki
Application Number:
JP3806789A
Publication Date:
July 30, 1998
Filing Date:
February 17, 1989
Export Citation:
Assignee:
Fudo Construction Co., Ltd.
International Classes:
F42D3/04; E21D9/06; (IPC1-7): E21D9/06
Domestic Patent References:
| JP53133919A | ||||
| JP5245121B2 |
Attorney, Agent or Firm:
Hideki Yamamoto