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经营范围
发明名称
ABOVE-BIT LUBRICATOR
摘要
申请公布号
SU615192(A1)
申请公布日期
1978.07.15
申请号
SU19752098368
申请日期
1975.01.20
申请人
SEMAKIN SERGEJ D,SU
发明人
SEMAKIN SERGEJ D,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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