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发明名称
METHOD FOR WELL DRILLING
摘要
申请公布号
RU1801169(C)
申请公布日期
1993.03.07
申请号
SU19904798267
申请日期
1990.01.30
申请人
KURTOV VENIAMIN D,SU;OZARCHUK PETR A,SU;GLUSHAKOV ADOLF YA,SU;VOLOSHINIVSKIJ BOGDAN O,SU
发明人
KURTOV VENIAMIN D,SU;OZARCHUK PETR A,SU;GLUSHAKOV ADOLF YA,SU;VOLOSHINIVSKIJ BOGDAN O,SU
分类号
E21B4/00
主分类号
E21B4/00
代理机构
代理人
主权项
地址
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