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发明名称
APPARATUS FOR CLEANING FILTERS OF WATER SUPPLY WELLS
摘要
申请公布号
SU1025874(A1)
申请公布日期
1983.06.30
申请号
SU19823403033
申请日期
1982.02.23
申请人
VNI P K I GORNOGO DELA TSVETNOJ METALLURGII
发明人
DEMIN ALEKSANDR M,SU;IRZHANOV ANVAR SH,SU;NAGIBIN YURIJ P,SU;GORBACHEVA NATALIYA P,SU;LUKER LEONID M,SU
分类号
E21B37/08;E21B43/25;(IPC1-7):E21B43/25
主分类号
E21B37/08
代理机构
代理人
主权项
地址
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