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发明名称
DEVICE FOR LUBRICATING SEALED-AWAY BEARING OF ROTARY DRILL BIT
摘要
申请公布号
SU976010(A1)
申请公布日期
1982.11.23
申请号
SU19813287194
申请日期
1981.05.04
申请人
UFIMSKIJ NEFTYANOJ INSTITUT
发明人
TRUSHKIN BORIS N,SU;POPOV ANATOLIJ N,SU;SPIVAK ALEKSANDR I,SU;ZHULAEV VALERIJ P,SU;BALABASHIN BORIS P,SU;YUDIN ALEKSANDR S,SU
分类号
E21B10/24;(IPC1-7):E21B10/24
主分类号
E21B10/24
代理机构
代理人
主权项
地址
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