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发明名称
Downhole pump assembly
摘要
申请公布号
GB2237312(A)
申请公布日期
1991.05.01
申请号
GB19900023450
申请日期
1990.10.29
申请人
ANTONY DUNCAN * CAMERON
发明人
ANTONY DUNCAN * CAMERON
分类号
E21B23/14;E21B43/12;F04D3/02;F04D13/10
主分类号
E21B23/14
代理机构
代理人
主权项
地址
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