Title:
【発明の名称】地質試料採取方法とその装置
Document Type and Number:
Japanese Patent JPH0694774
Kind Code:
B2
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| JPS60100609 | METHOD FOR DRAWING CORE OF HARD MATERIAL |
Inventors:
Kaneo Tobe
Yu Karasawa
Yu Karasawa
Application Number:
JP3984290A
Publication Date:
November 24, 1994
Filing Date:
February 22, 1990
Export Citation:
Assignee:
Central Development Co., Ltd.
International Classes:
E21B25/04; (IPC1-7): E21B25/04
Domestic Patent References:
| JP5664084A | ||||
| JP63114797A |
Attorney, Agent or Firm:
Harada Shinichi
Next Patent: FAULT POINT LOCATING DEVICE