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发明名称
摘要
申请公布号
JPH0490043(U)
申请公布日期
1992.08.06
申请号
JP19900400088U
申请日期
1990.12.05
申请人
发明人
分类号
G11B17/028;(IPC1-7):G11B17/028
主分类号
G11B17/028
代理机构
代理人
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地址
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