Title:
削孔装置
Document Type and Number:
Japanese Patent JP4001346
Kind Code:
B2
Inventors:
Takuji Yamamoto
Fukuya Yoshinori
Yasuyuki Miyajima
Shingo Wakita
Takashi Tsuji
Toru Hama
Fukuya Yoshinori
Yasuyuki Miyajima
Shingo Wakita
Takashi Tsuji
Toru Hama
Application Number:
JP2004292597A
Publication Date:
October 31, 2007
Filing Date:
October 05, 2004
Export Citation:
Assignee:
Kashima Construction Co., Ltd.
KFC Inc.
KFC Inc.
International Classes:
E21B17/07; E21B6/02; E21B7/20; E21D9/04
Domestic Patent References:
| JP2003172086A | ||||
| JP2001280063A | ||||
| JP7224590A | ||||
| JP2002147163A | ||||
| JP2001164860A |
Attorney, Agent or Firm:
Ryuji Takahashi
Shigeyuki Motoi
Shigeyuki Motoi