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摘要
申请公布号
JP2583992(Y2)
申请公布日期
1998.10.27
申请号
JP19910065915U
申请日期
1991.07.25
申请人
发明人
分类号
G02B6/30;(IPC1-7):G02B6/30
主分类号
G02B6/30
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