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发明名称
摘要
申请公布号
JPS5670623(U)
申请公布日期
1981.06.11
申请号
JP19790108525U
申请日期
1979.08.08
申请人
发明人
分类号
H01F21/04;(IPC1-7):H01F21/04
主分类号
H01F21/04
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