Title:
【発明の名称】トンネルの位置計測方法
Document Type and Number:
Japanese Patent JP3075785
Kind Code:
B2
Inventors:
Kazuyoshi Kawabata
Tomohiro Kurosawa
Kazuo Toyokawa
Tomohiro Kurosawa
Kazuo Toyokawa
Application Number:
JP21803291A
Publication Date:
August 14, 2000
Filing Date:
August 05, 1991
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
Airec Engineering Co., Ltd.
Airec Engineering Co., Ltd.
International Classes:
G01S17/08; G01C22/00; (IPC1-7): G01S17/08; G01C22/00
Domestic Patent References:
| JPS6218704B2 | ||||
| JPS63246610A |
Attorney, Agent or Firm:
Takashi Sawai