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发明名称
摘要
申请公布号
JPS57173169(U)
申请公布日期
1982.11.01
申请号
JP19810059308U
申请日期
1981.04.24
申请人
发明人
分类号
G11B15/675;G11B15/66;(IPC1-7):G11B15/66
主分类号
G11B15/675
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