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发明名称
TETE DE PONT POUR LE PASSAGE TRANSVERSAL D'UN FOSSE
摘要
申请公布号
FR2620468(B1)
申请公布日期
1990.10.26
申请号
FR19870012610
申请日期
1987.09.11
申请人
COMMUNEAU ROGER
发明人
分类号
E01F5/00;(IPC1-7):E02B9/04;E02B13/00
主分类号
E01F5/00
代理机构
代理人
主权项
地址
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