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发明名称
WATER-JET DRILL BIT
摘要
申请公布号
SU840267(A1)
申请公布日期
1981.06.23
申请号
SU19792726597
申请日期
1979.02.14
申请人
VOLGOGRADSKIJ G NAUCHNO- I PI NEFTYANOJ PROMYSHLENNOSTI
发明人
LITVISHKO VLADIMIR G,SU;LITVINOV NIKOLAJ P,SU;ZYUBIN VIKTOR I,SU;ANTONENKO NIKOLAJ M,SU
分类号
(IPC1-7):E21B9/08
主分类号
(IPC1-7):E21B9/08
代理机构
代理人
主权项
地址
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