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发明名称
CORE DRILLING BIT
摘要
申请公布号
RU2017926(C1)
申请公布日期
1994.08.15
申请号
SU19904836454
申请日期
1990.06.07
申请人
SURGUTSKOE OTDELENIE ZAPADNO-SIBIRSKOGO NAUCHNO-ISSLEDOVATELSKOGO I PROEKTNO-KONSTRUKTORSKOGO INSTITUTA TEKHNOLOGII GLUBOKOGO RAZVEDOCHNOGO BURENIYA
发明人
RUDENKO NIKOLAJ A;RUDENKO ALEKSEJ P;ESHIMOV GEORGIJ K
分类号
E21B10/06;(IPC1-7):E21B10/06
主分类号
E21B10/06
代理机构
代理人
主权项
地址
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