Title:
曲線削孔装置
Document Type and Number:
Japanese Patent JP4377763
Kind Code:
B2
Inventors:
Yasushi Morita
Fumihiko Kajita
Fumihiko Kajita
Application Number:
JP2004204847A
Publication Date:
December 02, 2009
Filing Date:
July 12, 2004
Export Citation:
Assignee:
Taisei Corporation
Nittoku Construction Co., Ltd.
Nittoku Construction Co., Ltd.
International Classes:
E21B7/04; E21D9/01
Domestic Patent References:
| JP6193390A | ||||
| JP2004084363A | ||||
| JP10266775A | ||||
| JP7011864A |
Attorney, Agent or Firm:
Isono Dozo