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发明名称
VOUSSOIRS DE REVETEMENT DE TUNNEL ET PROCEDE DE MAINTENANCE DE LA JUPE D'UN TUNNELIER.
摘要
申请公布号
FR2917776(B1)
申请公布日期
2009.09.04
申请号
FR20070055998
申请日期
2007.06.25
申请人
BOUYGUES TRAVAUX PUBLICS SOCIETE ANONYME
发明人
MARTIN OLIVIER;MICHEL DOMINIQUE;LONGCHAMP PIERRE;VALLON FRANCIS
分类号
E21D9/00;E21D11/00
主分类号
E21D9/00
代理机构
代理人
主权项
地址
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