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发明名称
ELECTRICALLY DRIVEN VACUUM PUMP
摘要
申请公布号
GB1236756(A)
申请公布日期
1971.06.23
申请号
GB19680039151
申请日期
1968.08.15
申请人
ARTHUR PFEIFFER HOCHVAKUUMTECHNIK G.M.B.H.
发明人
分类号
F04D19/04;F04D25/06;H02K29/08
主分类号
F04D19/04
代理机构
代理人
主权项
地址
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