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发明名称
摘要
申请公布号
BE646385(A)
申请公布日期
1964.07.31
申请号
BED646385
申请日期
1964.04.10
申请人
发明人
分类号
H01H71/38;H01H73/10;H03F3/191;H03F3/68
主分类号
H01H71/38
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代理人
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