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发明名称
Drag vacuum pump.
摘要
申请公布号
EP0434939(B1)
申请公布日期
1994.07.13
申请号
EP19900121108
申请日期
1990.11.05
申请人
LEYBOLD AKTIENGESELLSCHAFT
发明人
SCHOROTH, ANNO
分类号
F04B51/00;F04D19/04;(IPC1-7):F04D19/04;G01L21/24
主分类号
F04B51/00
代理机构
代理人
主权项
地址
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