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经营范围
发明名称
A PUMP SYSTEM
摘要
申请公布号
GB9127435(D0)
申请公布日期
1992.02.19
申请号
GB19910027435
申请日期
1991.12.27
申请人
SCOTIA ENGINEERING LIMITED
发明人
分类号
E21B43/12;F04D13/10;F04D13/12;F04D15/02
主分类号
E21B43/12
代理机构
代理人
主权项
地址
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