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发明名称
摘要
申请公布号
JPH02888(Y2)
申请公布日期
1990.01.10
申请号
JP19840197381U
申请日期
1984.12.25
申请人
发明人
分类号
H01F38/14;G11B5/02;(IPC1-7):H01F23/00
主分类号
H01F38/14
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代理人
主权项
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