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发明名称
摘要
申请公布号
JPS571342(Y2)
申请公布日期
1982.01.09
申请号
JP19770051057U
申请日期
1977.04.22
申请人
发明人
分类号
G11B23/087;G11B23/08;(IPC1-7):G11B23/08
主分类号
G11B23/087
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