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发明名称
Perfectionnements aux calottes réfléchissantes pour la signalisation et la publicité
摘要
申请公布号
FR739446(A)
申请公布日期
1933.01.12
申请号
FRD739446
申请日期
1932.07.04
申请人
PUBLICITE ASTRA (S. A R. L.)
发明人
分类号
G02B5/126
主分类号
G02B5/126
代理机构
代理人
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