Title:
深井戸管内の洗浄方法
Document Type and Number:
Japanese Patent JP5167221
Kind Code:
B2
Inventors:
Kazuo Suzuki
Kenji Suzuki
Suzuki Akinori
Kenji Suzuki
Suzuki Akinori
Application Number:
JP2009212818A
Publication Date:
March 21, 2013
Filing Date:
September 15, 2009
Export Citation:
Assignee:
veema corporation
International Classes:
B08B9/032; B08B3/02; E21B31/03
Domestic Patent References:
| JP7305382A | ||||
| JP2002192094A | ||||
| JP2023064U |
Foreign References:
| WO2008014559A1 |
Attorney, Agent or Firm:
Hikoji Hirasaki
Previous Patent: JPS5167220
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