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发明名称
DISPOSITIF DE LECTURE TACTILE
摘要
申请公布号
FR2565010(B1)
申请公布日期
1986.09.19
申请号
FR19840008143
申请日期
1984.05.24
申请人
TRETIAKOFF OLEG
发明人
分类号
G09B21/00;(IPC1-7):G09B21/00
主分类号
G09B21/00
代理机构
代理人
主权项
地址
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