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经营范围
发明名称
Perfectionnements apportés aux revêtements de chaussées
摘要
申请公布号
FR792446(A)
申请公布日期
1935.12.31
申请号
FRD792446
申请日期
1935.07.16
申请人
发明人
HALBACH
分类号
E01C7/12
主分类号
E01C7/12
代理机构
代理人
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