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发明名称
Debris barrier for downhole tools
摘要
申请公布号
AU2010241423(A1)
申请公布日期
2011.05.26
申请号
AU20100241423
申请日期
2010.11.12
申请人
WEATHERFORD/LAMB, INC.
发明人
STEVEN B. SMITH;MARK S. FULLER
分类号
E21B33/14;E21B27/00;E21B31/08
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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