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发明名称
DIAMOND DRILL BIT
摘要
申请公布号
SU587234(A1)
申请公布日期
1978.01.05
申请号
SU19762334110
申请日期
1976.03.15
申请人
VNII METODIKII TEKHNIKI RAZVEDKI
发明人
BABUSHKIN BORIS D,SU;BYCHENKOV EVGENIJ ,SU;ISAEV MIKHAIL ,SU;NIKOLAS ALEKSEJ L,SU
分类号
(IPC1-7):E21B9/36
主分类号
(IPC1-7):E21B9/36
代理机构
代理人
主权项
地址
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