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发明名称
APPARATUS FOR MEASURING DRILLING RATE
摘要
申请公布号
SU1090855(A1)
申请公布日期
1984.05.07
申请号
SU19833550476
申请日期
1983.02.08
申请人
TASHKENTSKOE SP KT BYURO "TEKHNOPRIBOR"
发明人
IONIN IGOR R,SU;PETROV VLADIMIR S,SU
分类号
E21B45/00;(IPC1-7):E21B45/00
主分类号
E21B45/00
代理机构
代理人
主权项
地址
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