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发明名称
摘要
申请公布号
SU415657(A1)
申请公布日期
1974.02.15
申请号
SU19721771939
申请日期
1972.04.11
申请人
发明人
分类号
G06F3/14;G09G3/20;(IPC1-7):G06F3/14
主分类号
G06F3/14
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代理人
主权项
地址
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