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发明名称
摘要
申请公布号
JPS56106522(U)
申请公布日期
1981.08.19
申请号
JP19800004865U
申请日期
1980.01.19
申请人
发明人
分类号
G11B31/00;G11B5/027;(IPC1-7):G11B5/027
主分类号
G11B31/00
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