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发明名称
摘要
申请公布号
JPS6331247(Y2)
申请公布日期
1988.08.22
申请号
JP19810178371U
申请日期
1981.11.30
申请人
发明人
分类号
G11B17/02;G11B19/02;G11B19/04;G11B19/20;G11B25/04;(IPC1-7):G11B19/04
主分类号
G11B17/02
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代理人
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