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发明名称
摘要
申请公布号
JPS513396(Y2)
申请公布日期
1976.01.31
申请号
JP19710057337U
申请日期
1971.06.30
申请人
发明人
分类号
H01F37/00;H01F27/00;H01F29/00;(IPC1-7):H01F29/00
主分类号
H01F37/00
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代理人
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