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发明名称
MEHRSTUFIGE DRUCKHALTEVORRICHTUNG FÜR BOHRLOCHWERKZEUGE
摘要
申请公布号
DE60008087(D1)
申请公布日期
2004.03.11
申请号
DE20006008087
申请日期
2000.04.04
申请人
WEATHERFORD/LAMB, INC.
发明人
CARISELLA, V.;WILSON, J.
分类号
E21B33/127;(IPC1-7):E21B33/127
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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