Title:
【発明の名称】地山検査方法
Document Type and Number:
Japanese Patent JP2601463
Kind Code:
B2
Inventors:
Araki Harumi
Application Number:
JP28637786A
Publication Date:
April 16, 1997
Filing Date:
December 01, 1986
Export Citation:
Assignee:
Asahi Koyo Co., Ltd.
International Classes:
E21D9/00; E21F17/18; G01J5/10; G01V9/00; (IPC1-7): G01V9/00; G01J5/10
Domestic Patent References:
| JP5393101A | ||||
| JP56142427A |
Attorney, Agent or Firm:
Tsuneo Tanaka