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发明名称
摘要
申请公布号
JPS4714844(Y1)
申请公布日期
1972.05.27
申请号
JP19690086848U
申请日期
1969.09.13
申请人
发明人
分类号
(IPC1-7):H01F27/32
主分类号
(IPC1-7):H01F27/32
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代理人
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