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发明名称
DRILL BIT WASHING UNIT
摘要
申请公布号
SU861536(A1)
申请公布日期
1981.09.07
申请号
SU19772557241
申请日期
1977.12.21
申请人
SP K BYURO PO DOLOTAM "KUJBYSHEVBURMASH"
发明人
BOGOMOLOV RODION M,SU;MIKHAJLIN YURIJ G,SU;PANIN NIKOLAJ M,SU;KIRSANOV VALERIJ A,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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