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发明名称
JOINT ARRANGEMENT FOR COUPLING OF A DRILL SHOE
摘要
申请公布号
EP2265792(A1)
申请公布日期
2010.12.29
申请号
EP20090722344
申请日期
2009.02.16
申请人
OY ATLAS COPCO ROTEX AB
发明人
AHONEN, JUKKA
分类号
E21B7/20;E21B17/04;E21B17/08;E21B17/14
主分类号
E21B7/20
代理机构
代理人
主权项
地址
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