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发明名称
Doppelstufige Fluessigkeitsringpumpe
摘要
申请公布号
DE870004(C)
申请公布日期
1953.03.09
申请号
DE1951S023883
申请日期
1951.07.10
申请人
OTTO SIEMEN;JOHANNES HINSCH
发明人
分类号
F04C19/00;F04C23/00
主分类号
F04C19/00
代理机构
代理人
主权项
地址
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