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发明名称
METHOD OF COMBINED COUNTER-SEEPAGE SCREEN
摘要
申请公布号
SU1476043(A1)
申请公布日期
1989.04.30
申请号
SU19874307961
申请日期
1987.09.21
申请人
UK OTDEL V PROEKTNO-IZYSKATELSKOGO NII "GIDROPROEKT" IM.S.YA.ZHUKA
发明人
RASKIN GRIGORIJ V,SU;SVASHENKO LEONID S,SU
分类号
E02B3/16
主分类号
E02B3/16
代理机构
代理人
主权项
地址
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