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经营范围
发明名称
TOOL FOR DIRECTED DRILLING
摘要
申请公布号
SU578419(A2)
申请公布日期
1977.10.30
申请号
SU19762316125
申请日期
1976.01.21
申请人
ZABAJKALSKIJ KOMPLEKSNYJ NII MINISTERSTVA GEOLOGII SSSR
发明人
KOSTIN YURIJ S,SU;GOLUBIN STANISLAV V,SU
分类号
E21B7/08;(IPC1-7):E21B7/08
主分类号
E21B7/08
代理机构
代理人
主权项
地址
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