Title:
コア採取装置
Document Type and Number:
Japanese Patent JP3986388
Kind Code:
B2
Inventors:
Kuniyoshi Ito
Kenji Ito
Kenji Ito
Application Number:
JP2002226636A
Publication Date:
October 03, 2007
Filing Date:
August 02, 2002
Export Citation:
Assignee:
Ito Manufacturing Co., Ltd.
International Classes:
E21B25/00; E02D1/04; G01N1/08
Domestic Patent References:
| JP4055589A | ||||
| JP3042726U | ||||
| JP71129C2 | ||||
| JP5187181A |
Attorney, Agent or Firm:
Hisashi Kato