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发明名称
Crible à grille, à nettoyage automatique
摘要
申请公布号
FR684148(A)
申请公布日期
1930.06.21
申请号
FRD684148
申请日期
1929.10.29
申请人
THE DORR COMPANY
发明人
分类号
E02B8/02
主分类号
E02B8/02
代理机构
代理人
主权项
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