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发明名称
摘要
申请公布号
JPS57118521(U)
申请公布日期
1982.07.23
申请号
JP19810004186U
申请日期
1981.01.16
申请人
发明人
分类号
G11B20/02;G11B5/027;(IPC1-7):G11B5/027
主分类号
G11B20/02
代理机构
代理人
主权项
地址
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