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发明名称
VACUUM PUMP APPARATUS
摘要
申请公布号
GB1508318(A)
申请公布日期
1978.04.19
申请号
GB19750025107
申请日期
1975.06.11
申请人
SIEMENS AG
发明人
分类号
F04C25/02;F04B37/16;F04B41/06;F04B49/00;F04B49/20;F04B49/24;(IPC1-7):F04D25/16
主分类号
F04C25/02
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