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发明名称
摘要
申请公布号
JP2552202(Y2)
申请公布日期
1997.10.29
申请号
JP19910067862U
申请日期
1991.07.31
申请人
发明人
分类号
G02B5/32;G11B7/135;(IPC1-7):G11B7/135
主分类号
G02B5/32
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