Title:
サンプラーに装着される装置
Document Type and Number:
Japanese Patent JP4926295
Kind Code:
B1
Inventors:
Takayuki Hosono
Masataka Kobayashi
Daisuke Nagaoka
Masataka Kobayashi
Daisuke Nagaoka
Application Number:
JP2011250489A
Publication Date:
May 09, 2012
Filing Date:
November 16, 2011
Export Citation:
Assignee:
Co., Ltd. AC drilling industry
Masataka Kobayashi
Daisuke Nagaoka
Masataka Kobayashi
Daisuke Nagaoka
International Classes:
E21B25/16
Domestic Patent References:
| JP2011021462A | 2011-02-03 | |||
| JPS548101A | 1979-01-22 | |||
| JPS542902A | 1979-01-10 |
Attorney, Agent or Firm:
Seiji Sugiyama