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经营范围
发明名称
éléments de balisage à gradins multiples, lumineux et anti-dérapants
摘要
申请公布号
FR43939(E)
申请公布日期
1934.09.19
申请号
FRD43939
申请日期
1933.06.08
申请人
发明人
AUGUSTE-EUGENE-GUSTA PIQUEREZ,
分类号
E01F9/669
主分类号
E01F9/669
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代理人
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地址
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