Title:
施工具用回転駆動装置
Document Type and Number:
Japanese Patent JP4448608
Kind Code:
B2
Inventors:
Takaaki Isogai
Application Number:
JP2000288929A
Publication Date:
April 14, 2010
Filing Date:
September 22, 2000
Export Citation:
Assignee:
Nippon Vehicle Manufacturing Co., Ltd.
International Classes:
E21B3/02; E21B7/00
Domestic Patent References:
| JP63023352B2 | ||||
| JP8260862A | ||||
| JP59220591A | ||||
| JP2538925Y2 |
Attorney, Agent or Firm:
Tsutomu Adachi
Toshihiro Tanaka
Toshihiro Tanaka