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经营范围
发明名称
Nouveau béton bitumineux pour le revêtement des routes et chaussées
摘要
申请公布号
FR729018(A)
申请公布日期
1932.07.16
申请号
FRD729018
申请日期
1931.03.09
申请人
SOCIETE GENERALE DES ROUTES ECONOMIQUES
发明人
分类号
E01C7/18
主分类号
E01C7/18
代理机构
代理人
主权项
地址
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