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发明名称
摘要
申请公布号
FR2275828(B1)
申请公布日期
1980.08.01
申请号
FR19750016984
申请日期
1975.05.30
申请人
SPERRY CORP
发明人
分类号
G09G5/00;G06K15/10;G09G1/16;G09G3/04;G09G5/28;(IPC1-7):G06K15/18
主分类号
G09G5/00
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代理人
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