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发明名称
VERFAHREN UND VORRICHTUNG ZUM AUSHEBEN VON UNTER DEM WASSERSPIEGEL BEFINDLICHEM ERDREICH
摘要
申请公布号
DE2353651(A1)
申请公布日期
1974.06.20
申请号
DE19732353651
申请日期
1973.10.26
申请人
BLANKEVOORT,DIRK
发明人
BLANKEVOORT,DIRK
分类号
E02F3/90;(IPC1-7):E02F3/88
主分类号
E02F3/90
代理机构
代理人
主权项
地址
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