Title:
【発明の名称】地下掘削機の位置検出方法
Document Type and Number:
Japanese Patent JP2911101
Kind Code:
B2
Inventors:
KIKUCHI TETSUKI
ISHIZAKA MINE
MATSUI NOBUYUKI
ISHIZAKA MINE
MATSUI NOBUYUKI
Application Number:
JP28949094A
Publication Date:
June 23, 1999
Filing Date:
November 24, 1994
Export Citation:
Assignee:
KAJIMA KENSETSU KK
International Classes:
E21B4/00; G01B7/00; G01C15/00; G01D5/12; (IPC1-7): G01C15/00; E21B4/00; G01B7/00; G01D5/12
Domestic Patent References:
| JP694463A | ||||
| JP6258006A | ||||
| JP6307888A | ||||
| JP372291A | ||||
| JP55157715U |
Attorney, Agent or Firm:
Reijiro Ichihigashi