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 JP4303845
Kind Code:
B2
Inventors:
Suzuki Yuji
Application Number:
JP27187999A
Publication Date:
July 29, 2009
Filing Date:
September 27, 1999
Export Citation:
Assignee:
Ubilon Fact Co., Ltd.
International Classes:
E21B25/00; E02D1/04; G01N1/08
Domestic Patent References:
| JP63091584U | ||||
| JP50016285B1 | ||||
| JP63138095A |
Attorney, Agent or Firm:
Tadashi Fujikawa