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发明名称
PROCEDE DE DRAINAGE D'UNE AIRE ET MATERIEL DE REALISATION DE DRAINS
摘要
申请公布号
FR2515228(B1)
申请公布日期
1986.05.30
申请号
FR19810020374
申请日期
1981.10.28
申请人
CAUSSAT TEDDY
发明人
分类号
E01C13/02;E02F5/10;E02F5/12;(IPC1-7):E02B11/00;E02B11/02
主分类号
E01C13/02
代理机构
代理人
主权项
地址
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