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经营范围
发明名称
APPARATUS FOR PUMPING WELL EFFLUENTS
摘要
申请公布号
GB8804727(D0)
申请公布日期
1988.03.30
申请号
GB19880004727
申请日期
1988.02.29
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV
发明人
分类号
E21B43/12;F04D13/04;F04D15/00
主分类号
E21B43/12
代理机构
代理人
主权项
地址
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