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发明名称
DEVICE FOR MEASURING DRILLING RATE
摘要
申请公布号
SU848608(A1)
申请公布日期
1981.07.23
申请号
SU19792864731
申请日期
1979.10.15
申请人
METODICHESKAYA EKSPEDITSIYA GEOLOGOEKONOMICHESKIKH ISSLEDOVANIJ
发明人
AJZUPPE ELMIR A,SU;KULISHENKO VIKTOR A,SU;SERGEEV MIKHAIL I,SU;KHALIMTAEV SHUKHRAT A,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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