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发明名称
摘要
申请公布号
DE2118843(A1)
申请公布日期
1972.09.28
申请号
DE19712118843
申请日期
1971.04.19
申请人
BBC BROWN BOVERI & CIE
发明人
分类号
H02J3/18;(IPC1-7):H02J3/18
主分类号
H02J3/18
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