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发明名称
PROCEDE DE CONSTRUCTION D'UNE VOIE FERREE DANS DU BETON.
摘要
申请公布号
FR2691484(B1)
申请公布日期
1994.07.29
申请号
FR19920006303
申请日期
1992.05.22
申请人
VANOTTI GERARD
发明人
VANOTTI GERARD
分类号
E01B1/00;E01B21/00;(IPC1-7):E01B21/00
主分类号
E01B1/00
代理机构
代理人
主权项
地址
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