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发明名称
摘要
申请公布号
JPS5642809(Y2)
申请公布日期
1981.10.07
申请号
JP19750086441U
申请日期
1975.06.24
申请人
发明人
分类号
G11B3/08;G11B21/16;(IPC1-7):G11B3/08
主分类号
G11B3/08
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