Title:
METHOD OF CONSTRUCTION OF TUNNEL
Document Type and Number:
Japanese Patent JPS5844189
Kind Code:
A
Inventors:
UENO TOSHIYUKI
Application Number:
JP14084481A
Publication Date:
March 15, 1983
Filing Date:
September 09, 1981
Export Citation:
Assignee:
SATO KOGYO
JAPAN NATIONAL RAILWAY
JAPAN NATIONAL RAILWAY
International Classes:
E21D9/04; E21D9/06; (IPC1-7): E21D9/06
Domestic Patent References:
| JPS5616789A | 1981-02-18 |
Attorney, Agent or Firm:
Okamoto Shigefumi