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发明名称
Electronic Down-hole Valve
摘要
申请公布号
GB2471935(A)
申请公布日期
2011.01.19
申请号
GB20100011274
申请日期
2010.07.05
申请人
RED SPIDER TECHNOLOGY LIMITED
发明人
MICHAEL ADAM REID
分类号
E21B34/06
主分类号
E21B34/06
代理机构
代理人
主权项
地址
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