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发明名称
摘要
申请公布号
JPS4945096(B1)
申请公布日期
1974.12.02
申请号
JP19700069162
申请日期
1970.08.06
申请人
发明人
分类号
H01F38/14;G11B5/02
主分类号
H01F38/14
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