Title:
既設井戸における多層取水層の採水方法及びそのストレーナーパッカー装置。
Document Type and Number:
Japanese Patent JP4906065
Kind Code:
B2
Inventors:
Hironori Yoshinori
Minoru Fukuda
Mutsumi Nakatsuka
Minoru Fukuda
Mutsumi Nakatsuka
Application Number:
JP2006084750A
Publication Date:
March 28, 2012
Filing Date:
March 27, 2006
Export Citation:
Assignee:
Wide Harbor Co., Ltd.
International Classes:
E21B43/14; E21B33/12
Domestic Patent References:
| JP7217362A | ||||
| JP8108169A | ||||
| JP2003307089A |
Attorney, Agent or Firm:
Akeda Kaoru