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发明名称
摘要
申请公布号
JPS56152971(U)
申请公布日期
1981.11.16
申请号
JP19800049086U
申请日期
1980.04.11
申请人
发明人
分类号
G11B17/049;G11B17/04;G11B19/04;(IPC1-7):G11B17/04
主分类号
G11B17/049
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