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经营范围
发明名称
Système de murs de soutènement
摘要
申请公布号
FR42906(E)
申请公布日期
1934.01.06
申请号
FRD42906
申请日期
1932.08.10
申请人
发明人
RAVIER SYLVAIN-LOUIS
分类号
E02D29/02
主分类号
E02D29/02
代理机构
代理人
主权项
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