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经营范围
发明名称
A method and device for fluid displacement
摘要
申请公布号
GB0709998(D0)
申请公布日期
2007.07.04
申请号
GB20070009998
申请日期
2005.10.26
申请人
HPI AS
发明人
分类号
E21B;E21B33/16
主分类号
E21B
代理机构
代理人
主权项
地址
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