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发明名称
LIQUID RING PUMPS
摘要
申请公布号
GB1545334(A)
申请公布日期
1979.05.10
申请号
GB19770031418
申请日期
1977.07.26
申请人
SIEMENS AG
发明人
分类号
F04C23/00;(IPC1-7):F04B35/04
主分类号
F04C23/00
代理机构
代理人
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地址
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