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发明名称
摘要
申请公布号
JPH0345253(U)
申请公布日期
1991.04.25
申请号
JP19890103783U
申请日期
1989.09.04
申请人
发明人
分类号
G11B19/20;(IPC1-7):G11B19/20
主分类号
G11B19/20
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代理人
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地址
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