Title:
ボーリング機におけるロッドチャック保持回路
Document Type and Number:
Japanese Patent JP4035433
Kind Code:
B2
Inventors:
Hiroaki Mori
Application Number:
JP2002360391A
Publication Date:
January 23, 2008
Filing Date:
December 12, 2002
Export Citation:
Assignee:
Mining Industry Co., Ltd.
International Classes:
E21B3/04; F15B11/028
Domestic Patent References:
| JP57209391A | ||||
| JP6153321A | ||||
| JP2000144732A |
Attorney, Agent or Firm:
Hirotaka Hatayama