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发明名称
FLUSHING ASSEMBLY OF DRILLING BIT
摘要
申请公布号
SU829849(A1)
申请公布日期
1981.05.15
申请号
SU19792773238
申请日期
1979.05.29
申请人
MO GEOLOGORAZVEDOCHNYJ I IM. S.ORDZHONIKIDZE
发明人
PANIN NIKOLAJ M,SU;SMIRNOV VYACHESLAV G,SU;BULGAKOV EVGENIJ S,SU;BARASHKOV VYACHESLAV A,SU;GOTOVKO ALEKSANDR D,SU
分类号
(IPC1-7):E21B9/35
主分类号
(IPC1-7):E21B9/35
代理机构
代理人
主权项
地址
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