Title:
Double pipe horizontal excavator used for relief method and relief from collapse accident
Document Type and Number:
Japanese Patent JP6348753
Kind Code:
B2
Inventors:
Hiroyuki Suenaga
Application Number:
JP2014075919A
Publication Date:
June 27, 2018
Filing Date:
April 02, 2014
Export Citation:
Assignee:
Mining Industry Co., Ltd.
International Classes:
E21B6/02; A62B99/00
Domestic Patent References:
| JP62258529A | ||||
| JP60003394A | ||||
| JP2061285A | ||||
| JP5033589A | ||||
| JP2011102523A | ||||
| JP62206199A |
Foreign References:
| US20070251730 |
Other References:
“チリ鉱山、13日0時から救出 カプセルのテストも成功”,日本,朝日新聞,2010年10月12日,
Attorney, Agent or Firm:
Kyosei International Patent Office
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