Title:
削孔装置
Document Type and Number:
Japanese Patent JP4778363
Kind Code:
B2
Inventors:
Noboru Nishigaki
Masayuki Hirata
Masayuki Hirata
Application Number:
JP2006157318A
Publication Date:
September 21, 2011
Filing Date:
June 06, 2006
Export Citation:
Assignee:
Miyaji Engineering Co., Ltd.
Nippon Fastem Co., Ltd.
Nippon Fastem Co., Ltd.
International Classes:
E21B3/02
Domestic Patent References:
| JP11293679A | ||||
| JP10252368A | ||||
| JP3241191A | ||||
| JP2584331B2 | ||||
| JP2000343370A |
Attorney, Agent or Firm:
Hiroshi Arafune