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发明名称
Perfectionnements aux appareils de signalisation et de publicité et similaires
摘要
申请公布号
FR837286(A)
申请公布日期
1939.02.07
申请号
FRD837286
申请日期
1937.10.19
申请人
ETABLISSEMENTS BOLLA & MARINIER
发明人
分类号
G09F13/16
主分类号
G09F13/16
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代理人
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