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发明名称
摘要
申请公布号
CS175800(B1)
申请公布日期
1977.05.31
申请号
CS19760000373
申请日期
1974.10.15
申请人
发明人
分类号
H01F27/14;(IPC1-7):H01F27/14
主分类号
H01F27/14
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