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发明名称
摘要
申请公布号
JP2533962(Y2)
申请公布日期
1997.04.30
申请号
JP19900087689U
申请日期
1990.08.22
申请人
发明人
分类号
G03B17/56;H04N5/225;(IPC1-7):G03B17/56
主分类号
G03B17/56
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代理人
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