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发明名称
摘要
申请公布号
JPS57184577(U)
申请公布日期
1982.11.24
申请号
JP19810069970U
申请日期
1981.05.15
申请人
发明人
分类号
G11B23/30;G11B23/08;G11B23/087;(IPC1-7):G11B23/08
主分类号
G11B23/30
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代理人
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