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发明名称
Anordninger for styrbare rotasjonsboringssystemer
摘要
申请公布号
NO960593(A)
申请公布日期
1996.08.26
申请号
NO19960000593
申请日期
1996.02.15
申请人
CAMCO DRILLING GROUP LTD
发明人
BARR, JOHN DENZIL;MOTION, WILLIAM C.;RUSSELL, MICHAEL KING
分类号
E21B7/04;E21B7/06;E21B41/00;E21B47/01;E21B47/18;(IPC1-7):E21B7/08
主分类号
E21B7/04
代理机构
代理人
主权项
地址
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