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发明名称
摘要
申请公布号
JPS5321683(Y2)
申请公布日期
1978.06.07
申请号
JP19740009965U
申请日期
1974.01.21
申请人
发明人
分类号
H01F27/25;H01F3/04;H01F27/24;(IPC1-7):H01F27/24
主分类号
H01F27/25
代理机构
代理人
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