Title:
ロータリパーカッションドリル用ワイヤラインコア採取装置
Document Type and Number:
Japanese Patent JP4482775
Kind Code:
B2
Inventors:
Tetsuya Endo
Masayuki Ogawa
Masayuki Ogawa
Application Number:
JP2000044645A
Publication Date:
June 16, 2010
Filing Date:
February 22, 2000
Export Citation:
Assignee:
Mining Industry Co., Ltd.
International Classes:
E21B25/00; E21B6/00; E21B6/02
Domestic Patent References:
| JP10046562A | ||||
| JP62233395A | ||||
| JP4080496A | ||||
| JP6057734A | ||||
| JP11256974A | ||||
| JP8303171A | ||||
| JP7076985A | ||||
| JP6330686A |
Attorney, Agent or Firm:
Kyosei International Patent Office
Eiichi Saito
Eiichi Saito