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发明名称
DOCUMENT READER
摘要
申请公布号
GB1481973(A)
申请公布日期
1977.08.03
申请号
GB19740034249
申请日期
1974.08.02
申请人
WESTINGHOUSE LEARNING CORP
发明人
分类号
G11B5/80;G06K7/016;G06T1/00;(IPC1-7):G06K7/01
主分类号
G11B5/80
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代理人
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