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发明名称
APPARATUS FOR DRILLING INCLINED DIRECTIONAL BOREHOLES
摘要
申请公布号
SU1143824(A1)
申请公布日期
1985.03.07
申请号
SU19833594520
申请日期
1983.05.23
申请人
VNI PK UGOLNYJ INSTITUT
发明人
MAJDANSKIJ PETR V,SU;URAZOV VYACHESLAV V,SU;GONCHAROV VLADIMIR M,SU;SHMIDT VIKTOR F,SU;SARDOV ANATOLIJ I,SU
分类号
E21B7/08;E21B10/24;(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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