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发明名称
DOWNHOLE APPARATUS AND METHOD
摘要
申请公布号
EP2142756(B1)
申请公布日期
2011.05.25
申请号
EP20080736927
申请日期
2008.04.10
申请人
SWELLTEC LIMITED
发明人
NUTLEY, KIM;NUTLEY, BRIAN
分类号
E21B43/08;E21B43/10
主分类号
E21B43/08
代理机构
代理人
主权项
地址
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