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发明名称
IMPROVED ISOLATION BARRIER
摘要
申请公布号
EP2964876(A2)
申请公布日期
2016.01.13
申请号
EP20140717165
申请日期
2014.03.03
申请人
META DOWNHOLE LIMITED
发明人
WOOD, PETER;O'BRIEN, DANIEL
分类号
E21B33/127
主分类号
E21B33/127
代理机构
代理人
主权项
地址
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