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发明名称
摘要
申请公布号
JPH0512971(Y2)
申请公布日期
1993.04.06
申请号
JP19890082874U
申请日期
1989.07.13
申请人
发明人
分类号
H01F7/16;H01F7/06;(IPC1-7):H01F7/16
主分类号
H01F7/16
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代理人
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