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发明名称
METHOD FOR PROTECTING PRODUCTION WELL WITH GENTLY SLOPING COAL SEAMS AND WITH THE WELL EXTENDING THROUGH WATER-BEARING FORMATION
摘要
申请公布号
SU1006751(A1)
申请公布日期
1983.03.23
申请号
SU19813290905
申请日期
1981.05.11
申请人
VNII GORNOJ GEOMEKHANIKI MARKSHEJDERSKOGO DELA
发明人
AGARKOV ANATOLIJ K,SU;AKIMOV ALEKSANDR G,SU;BOSHENYATOV EVGENIJ V,SU;LEVCHENKO IVAN A,SU;PETUKHOV IGOR A,SU
分类号
E21B33/10;(IPC1-7):E21C41/04
主分类号
E21B33/10
代理机构
代理人
主权项
地址
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