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经营范围
发明名称
Barrage de retenue
摘要
申请公布号
FR1301440(A)
申请公布日期
1962.08.17
申请号
FR19610867333
申请日期
1961.07.07
申请人
ENTREPRISE TORRES & VILAULT
发明人
分类号
E02B7/22
主分类号
E02B7/22
代理机构
代理人
主权项
地址
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