Title:
さく孔機の操作装置
Document Type and Number:
Japanese Patent JP4493800
Kind Code:
B2
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Inventors:
Youichi Koroku
Masashi Yanagisawa
Toshihiko Gomi
Masashi Yanagisawa
Toshihiko Gomi
Application Number:
JP2000144678A
Publication Date:
June 30, 2010
Filing Date:
May 17, 2000
Export Citation:
Assignee:
Furukawa Metal Co., Ltd.
International Classes:
E21B7/00; E21B7/02; E21B12/00; E21B15/00; E21B19/08
Domestic Patent References:
| JP10061368A | ||||
| JP10115171A |
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Hide Tanaka Tetsu
Tadayuki Miyazaki
Yoshiaki Naito
Hide Tanaka Tetsu
Tadayuki Miyazaki