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发明名称
摘要
申请公布号
JPS57134824(U)
申请公布日期
1982.08.23
申请号
JP19810019863U
申请日期
1981.02.14
申请人
发明人
分类号
H01F27/02;H01F27/34;(IPC1-7):H01F27/02
主分类号
H01F27/02
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