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发明名称
APPARATUS FOR PRODUCING GRAVEL FILTER IN WELL
摘要
申请公布号
SU1067204(A1)
申请公布日期
1984.01.15
申请号
SU19823391719
申请日期
1982.04.12
申请人
AZERB GNII NEFTYANOJ PROMYSHLENNOSTI
发明人
MELIK-ASLANOV LYUTFALI S,SU;TUMANYAN BORIS A,SU;VEZIROV ABIL R,SU
分类号
E21B43/04;(IPC1-7):E21B43/04
主分类号
E21B43/04
代理机构
代理人
主权项
地址
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