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发明名称
METHOD OF CONSTRUCTING GRAVEL FILTER OF WATER WELL
摘要
申请公布号
SU1325140(A1)
申请公布日期
1987.07.23
申请号
SU19864043329
申请日期
1986.03.27
申请人
VNII GIDROMEKHANIZATSII,CAHôTAPHO-TEXHôÚECKôX ô CüE|ôAóÓHÕX CTPOôTEóÓHÕX PA¬OT
发明人
VERSTOV VLADIMIR V,SU;LUKIN VLADIMIR M,SU;TOPCHIN VLADISLAV V,SU;OZHERELEV PETR E,SU;LIBIN LAZAR L,SU;TARABUKIN VALERIJ I,SU
分类号
E03B3/24
主分类号
E03B3/24
代理机构
代理人
主权项
地址
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