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经营范围
发明名称
CROWN BIT
摘要
申请公布号
SU1492011(A1)
申请公布日期
1989.07.07
申请号
SU19853952536
申请日期
1985.06.28
申请人
SP K BYURO SAMOKHODNOGO GORNOGO OBORU;KUZNETSKIJ MASHINOSTROITELNYJ ZAVOD
发明人
SORKIN ANATOLIJ E,SU;LATYSHEV VLADIMIR A,SU;YANOVSKIJ ILYA I,SU;BYCHKOV ALEKSEJ I,SU;KARASIK ISAAK L,SU;MEDOVYJ YURIJ A,SU
分类号
E21B10/52
主分类号
E21B10/52
代理机构
代理人
主权项
地址
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