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发明名称
APPARATUS FOR MAINTAINING UNIFORM PRESSURE WITHIN AN EXPANDABLE WELL TOOL
摘要
申请公布号
EP1165934(A1)
申请公布日期
2002.01.02
申请号
EP20000917198
申请日期
2000.04.07
申请人
WEATHERFORD/LAMB, INC.
发明人
CARISELLA, JAMES, V.;WILSON, PAUL, 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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