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发明名称
TEXT READER
摘要
申请公布号
PL152736(B1)
申请公布日期
1991.01.31
申请号
PL19860262281
申请日期
1986.11.07
申请人
发明人
分类号
G02B;G02B25/00;(IPC1-7):G02B25/00
主分类号
G02B
代理机构
代理人
主权项
地址
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