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发明名称
DRILLING TOOL
摘要
申请公布号
SU1121375(A1)
申请公布日期
1984.10.30
申请号
SU19823505258
申请日期
1982.08.19
申请人
VNII METODIKI TEKHNIKI RAZVEDKI
发明人
YUGOV EVGENIJ V,SU
分类号
E21B10/66;(IPC1-7):E21B10/66
主分类号
E21B10/66
代理机构
代理人
主权项
地址
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