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发明名称
ROCK CUTTING TOOL FOR HIGH-SPEED DRILLING
摘要
申请公布号
RU1819969(C)
申请公布日期
1993.06.07
申请号
SU19894691279
申请日期
1989.05.15
申请人
VSESOYUZNYJ NAUCHNO-ISSLEDOVATELSKIJ INSTITUT BUROVOJ TEKHNIKI
发明人
IOANNESYAN ROLEN A;KRYUCHKOV PETR V
分类号
E21B10/26;(IPC1-7):E21B10/26
主分类号
E21B10/26
代理机构
代理人
主权项
地址
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