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经营范围
发明名称
DEVICE FOR SIMULTANEOUS SEPARATE USE OF TWO LAYSEAMS OF A WELL
摘要
申请公布号
SU687225(A1)
申请公布日期
1979.09.25
申请号
SU19752119435
申请日期
1975.03.31
申请人
V NEFTYANOJ NII PO TEKHNIKE BEZOPASNOSTI
发明人
KIRSH BORIS A,SU;AGAEV MIRZA V,SU
分类号
E21B43/14;(IPC1-7):E21B43/14
主分类号
E21B43/14
代理机构
代理人
主权项
地址
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