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经营范围
发明名称
Improved liquid ring pump
摘要
申请公布号
GB813420(A)
申请公布日期
1959.05.13
申请号
GB19570013719
申请日期
1957.04.30
申请人
THE NASH ENGINEERING COMPANY
发明人
分类号
F04C19/00
主分类号
F04C19/00
代理机构
代理人
主权项
地址
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