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发明名称
DEVICE FOR DRAINAGE CONSTRUCTION IN LOW-PERMEABLE SOILS
摘要
申请公布号
SU1629393(A1)
申请公布日期
1991.02.23
申请号
SU19874319612
申请日期
1987.10.21
申请人
SEVERNYJ NII GIDROTEKHNIKI MELIORATSII
发明人
MOLITVIN EGOR I,SU;KOVALCHUK NIKOLAJ N,SU;ELIZAROV BORIS A,SU;BISHOF ERIKH A,SU
分类号
E02B11/02
主分类号
E02B11/02
代理机构
代理人
主权项
地址
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