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摘要
申请公布号
DD110711(A1)
申请公布日期
1975.01.05
申请号
DD19740178322
申请日期
1974.05.07
申请人
发明人
分类号
G06K1/06;(IPC1-7):G06K1/06
主分类号
G06K1/06
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