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发明名称
Actuator
摘要
申请公布号
GB2430686(B)
申请公布日期
2010.09.29
申请号
GB20060019106
申请日期
2006.09.28
申请人
SCHLUMBERGER HOLDINGS LIMITED
发明人
GEOFF DOWNTON
分类号
E21B7/06;E21B23/00;E21B34/00;E21B34/06;F16K31/08;H02K33/16;H02K35/02
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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