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发明名称
Dispositif de représentation sélective de signes ou symboles appliqués sur une surface
摘要
申请公布号
FR1470873(A)
申请公布日期
1967.02.24
申请号
FR19660052610
申请日期
1966.03.08
申请人
发明人
ZIRKEL WOLFGANG
分类号
G08G5/00;G09B23/18;G09F19/12
主分类号
G08G5/00
代理机构
代理人
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地址
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