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发明名称
摘要
申请公布号
JPS5843671(U)
申请公布日期
1983.03.24
申请号
JP19810137149U
申请日期
1981.09.17
申请人
发明人
分类号
G11B21/20;G11B17/32;(IPC1-7):G11B17/32
主分类号
G11B21/20
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代理人
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