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经营范围
发明名称
DRILLING TOOL
摘要
申请公布号
SU1585490(A1)
申请公布日期
1990.08.15
申请号
SU19884418479
申请日期
1988.05.03
申请人
INST GORNOGO DELA IM.A.A.SKOCHINSKOGO
发明人
LAMBROV VLADIMIR V,SU;ELCHANINOV EVGENIJ A,SU;DYMCHENKO EVGENIJ A,SU;ANOSOV OLEG S,SU
分类号
E21B17/00;E21B7/28;E21C27/22;E21F15/06
主分类号
E21B17/00
代理机构
代理人
主权项
地址
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