Title:
削孔装置
Document Type and Number:
Japanese Patent JP4469738
Kind Code:
B2
Inventors:
Aoki Katsuri
Application Number:
JP2005035890A
Publication Date:
May 26, 2010
Filing Date:
February 14, 2005
Export Citation:
Assignee:
M's Co., Ltd.
International Classes:
E21B6/04; E21B7/00
Domestic Patent References:
| JP2001123783A | ||||
| JP2005023551A | ||||
| JP2784454B2 |
Attorney, Agent or Firm:
Sadanobu Shimizu