Title:
地質ボーリング調査における試料採取装置
Document Type and Number:
Japanese Patent JP4426676
Kind Code:
B2
Inventors:
Suzuki Yuji
Application Number:
JP27134599A
Publication Date:
March 03, 2010
Filing Date:
September 24, 1999
Export Citation:
Assignee:
Ubilon Fact Co., Ltd.
International Classes:
E21B25/10
Domestic Patent References:
| JP10205265A | ||||
| JP63091587U |
Attorney, Agent or Firm:
Tadashi Fujikawa