Title:
The sample extraction method
Document Type and Number:
Japanese Patent JP6249721
Kind Code:
B2
Inventors:
Masayoshi Yamazaki
Masayuki Yamashita
Toru Sato
Hiroyuki Ishiwatari
Masayuki Yamashita
Toru Sato
Hiroyuki Ishiwatari
Application Number:
JP2013230289A
Publication Date:
December 20, 2017
Filing Date:
November 06, 2013
Export Citation:
Assignee:
Nishimatsu Construction Co., Ltd.
International Classes:
E21B49/00
Domestic Patent References:
| JP2007155495A | ||||
| JP11081846A | ||||
| JP2000248877A | ||||
| JP10213526A | ||||
| JP55172839U | ||||
| JP60003385A | ||||
| JP55092499A |
Foreign References:
| WO2011052054A1 | ||||
| US20030006201 |
Attorney, Agent or Firm:
Patent Corporation MIP
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