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经营范围
发明名称
DRILL BIT
摘要
申请公布号
SU857421(A1)
申请公布日期
1981.08.23
申请号
SU19782647085
申请日期
1978.07.19
申请人
DN GORNYJ I IM.ARTEMA
发明人
KOZHEVNIKOV ANATOLIJ A,SU;SIRIK VIKTOR F,SU;BRAZHENENKO ANATOLIJ M,SU;GOLIKOV VIKTOR YA,SU;CHERNOVSKIJ YURIJ V,SU;GALANSKIJ GENNADIJ S,SU;LOBODYUK ALEKSANDR V,SU;PAPIZH VALERIJ A,SU
分类号
E21B10/02;(IPC1-7):E21B10/02
主分类号
E21B10/02
代理机构
代理人
主权项
地址
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