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发明名称
摘要
申请公布号
JP2611023(B2)
申请公布日期
1997.05.21
申请号
JP19900040540
申请日期
1990.02.20
申请人
发明人
分类号
G03G15/04;G03B27/50;(IPC1-7):G03B27/50
主分类号
G03G15/04
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