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发明名称
DEVICE FOR MEASURING SLOPE ANGLE AND DIRECTION OF DRILL
摘要
申请公布号
SU595495(A1)
申请公布日期
1978.02.28
申请号
SU19742047191
申请日期
1974.07.26
申请人
VNII BUROVOJ TEKHNIKI
发明人
ROGACHEV OLEG K,SU
分类号
E21B47/022;G01C9/18;(IPC1-7):E21B47/02
主分类号
E21B47/022
代理机构
代理人
主权项
地址
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