Title:
【発明の名称】杭打機の油圧オーガ装置
Document Type and Number:
Japanese Patent JP3355483
Kind Code:
B2
Inventors:
Tsuneko Tomita
Application Number:
JP29424299A
Publication Date:
December 09, 2002
Filing Date:
October 15, 1999
Export Citation:
Assignee:
Nippon Vehicle Manufacturing Co., Ltd.
International Classes:
E21B3/02; (IPC1-7): E21B3/02
Domestic Patent References:
| JP51139903U | ||||
| JP5922876B2 | ||||
| JP6019195Y2 |
Attorney, Agent or Firm:
Kazuhiko Kido (1 person outside)