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发明名称
摘要
申请公布号
JPH0389567(U)
申请公布日期
1991.09.12
申请号
JP19890148543U
申请日期
1989.12.22
申请人
发明人
分类号
G11B21/02;G11B33/14;(IPC1-7):G11B21/02
主分类号
G11B21/02
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代理人
主权项
地址
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