Title:
採泥器及び採泥方法
Document Type and Number:
Japanese Patent JP4080274
Kind Code:
B2
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Inventors:
Yuko Sumiko
Application Number:
JP2002230738A
Publication Date:
April 23, 2008
Filing Date:
August 08, 2002
Export Citation:
Assignee:
Japan Mikuniya Co., Ltd.
International Classes:
E21B49/02; G01N1/08; E02D1/04; E21B25/00
Domestic Patent References:
JP9125859A | ||||
JP3026936A |
Attorney, Agent or Firm:
Hideo Nagoshi
Tetsuro Ikuta
Tetsuro Ikuta