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经营范围
发明名称
DIRECTIONAL DRILLING DEVICE
摘要
申请公布号
SU1698412(A1)
申请公布日期
1991.12.15
申请号
SU19894745016
申请日期
1989.10.02
申请人
ZABAJKALSKIJ KOMPLEKSNYJ NII
发明人
ANDREEV YURIJ V,SU;ZAKIEV RASHIT B,SU
分类号
E21B7/08
主分类号
E21B7/08
代理机构
代理人
主权项
地址
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