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发明名称
Entlastungsscheibenpaar fuer mehrstufige Kreiselpumpen
摘要
申请公布号
DE1082803(B)
申请公布日期
1960.06.02
申请号
DE1957D025495
申请日期
1957.04.27
申请人
RUDOLF DUEMMERLING
发明人
DUEMMERLING RUDOLF;DOERNER KAETHE DUEMMERLING, GEB.
分类号
F04D29/04
主分类号
F04D29/04
代理机构
代理人
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