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发明名称
摘要
申请公布号
JPS4619851(Y1)
申请公布日期
1971.07.10
申请号
JP19680019050U
申请日期
1968.03.13
申请人
发明人
分类号
(IPC1-7):H01F27/08;F24F7/04
主分类号
(IPC1-7):H01F27/08
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