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发明名称
摘要
申请公布号
SE314241(B)
申请公布日期
1969.09.01
申请号
SE19640003809
申请日期
1964.03.25
申请人
IBM CORP
发明人
MARTIN V
分类号
G06K15/10;(IPC1-7):G06K15/02
主分类号
G06K15/10
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代理人
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