Title:
杭打機
Document Type and Number:
Japanese Patent JP6508936
Kind Code:
B2
Inventors:
Atsushi Kodama
Application Number:
JP2014256903A
Publication Date:
May 08, 2019
Filing Date:
December 19, 2014
Export Citation:
Assignee:
Nippon Vehicle Manufacturing Co., Ltd.
International Classes:
E21B7/00; E02D7/00; E21B15/00
Domestic Patent References:
| JP2006249715A | ||||
| JP2011246245A | ||||
| JP2010013815A |
Foreign References:
| US20120163921 |
Attorney, Agent or Firm:
Kazuhiko Kido
Yoshihiko Kido
Yoshihiko Kido