Title:
ケーシング設置装置および埋設物敷設工法
Document Type and Number:
Japanese Patent JP5142269
Kind Code:
B2
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Inventors:
Usura Susumu
Application Number:
JP2008109183A
Publication Date:
February 13, 2013
Filing Date:
April 18, 2008
Export Citation:
Assignee:
Shin Nippon Kogyo Co., Ltd.
International Classes:
E21B3/02; E01C23/09; E21B7/00; E21D1/06
Domestic Patent References:
| JP61270418A | ||||
| JP61017695A | ||||
| JP5039697A | ||||
| JP2001159288A |
Attorney, Agent or Firm:
Toshio Tsuruwaka