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发明名称
摘要
申请公布号
JPH0124898(Y2)
申请公布日期
1989.07.27
申请号
JP19820033301U
申请日期
1982.03.11
申请人
发明人
分类号
G03B15/05;H01F3/08;H01F17/04;H01F19/00;H01F27/255;H01F27/29;(IPC1-7):H01F17/04
主分类号
G03B15/05
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代理人
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