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发明名称
摘要
申请公布号
JPH0743717(Y2)
申请公布日期
1995.10.09
申请号
JP19860055750U
申请日期
1986.04.14
申请人
发明人
分类号
G03B27/50;G03G15/04;(IPC1-7):G03B27/50
主分类号
G03B27/50
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代理人
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