Title:
The bracket for drilling machine attachment, and a drilling system
Document Type and Number:
Japanese Patent JP5946055
Kind Code:
B2
Inventors:
Hasegawa Izumi
Yamaguchi Masatsugu
Yamaguchi Masatsugu
Application Number:
JP2011282194A
Publication Date:
July 05, 2016
Filing Date:
December 22, 2011
Export Citation:
Assignee:
Light Industry Co., Ltd.
International Classes:
E21B19/00; E21B7/00
Domestic Patent References:
| JP57142087U | ||||
| JP9151689A | ||||
| JP2001289237A | ||||
| JP11081374A |
Attorney, Agent or Firm:
Yoshihisa Nagai