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发明名称
摘要
申请公布号
JPS5449572(U)
申请公布日期
1979.04.06
申请号
JP19770123948U
申请日期
1977.09.13
申请人
发明人
分类号
H01F3/02;H01F7/16;(IPC1-7):H01F7/16
主分类号
H01F3/02
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