Title:
【発明の名称】シールド掘進機の後退防止装置
Document Type and Number:
Japanese Patent JP3093163
Kind Code:
B2
Inventors:
Izumi Nishizawa
Application Number:
JP11084497A
Publication Date:
October 03, 2000
Filing Date:
April 28, 1997
Export Citation:
Assignee:
KOMATSU LTD.
Konoike Gumi Co., Ltd.
Konoike Gumi Co., Ltd.
International Classes:
E21D9/06; (IPC1-7): E21D9/06
Domestic Patent References:
| JP5980593U |
Attorney, Agent or Firm:
Tsutomu Inoue