Title:
ロッド交換装置
Document Type and Number:
Japanese Patent JP4514896
Kind Code:
B2
Inventors:
Toshihiko Gomi
Application Number:
JP2000139281A
Publication Date:
July 28, 2010
Filing Date:
May 12, 2000
Export Citation:
Assignee:
Furukawa Metal Co., Ltd.
International Classes:
E21B19/20; E21B19/24
Domestic Patent References:
| JP8270367A | ||||
| JP8333979A |
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Hide Tanaka Tetsu
Tadayuki Miyazaki
Yoshiaki Naito
Hide Tanaka Tetsu
Tadayuki Miyazaki