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发明名称
CONE-DRILL BIT
摘要
申请公布号
RU1781411(C)
申请公布日期
1992.12.15
申请号
SU19904817681
申请日期
1990.04.23
申请人
TRAVKIN VITALIJ S,SU;FILATOV BORIS P,SU;SMIRNOV VYACHESLAV G,SU;POLANSKIJ GRIGORIJ A,SU
发明人
TRAVKIN VITALIJ S,SU;FILATOV BORIS P,SU;SMIRNOV VYACHESLAV G,SU;POLANSKIJ GRIGORIJ A,SU
分类号
E21B10/24
主分类号
E21B10/24
代理机构
代理人
主权项
地址
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