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发明名称
DEVICE FOR METERING FEED OF CHEMICAL REAGENTS TO WELL
摘要
申请公布号
SU649832(A1)
申请公布日期
1979.02.28
申请号
SU19762375721
申请日期
1976.06.23
申请人
NEFTEGAZODOBYVAYUSHCHEE U "AZNAKAEVSKNEFT"
发明人
GABDULLIN RAFAGAT G,SU;SHARAPOV ILGIZAR F,SU
分类号
E21B43/00;(IPC1-7):E21B43/00
主分类号
E21B43/00
代理机构
代理人
主权项
地址
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