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发明名称
SEALING FOR DOWNHOLE MOTOR
摘要
申请公布号
RU1792480(C)
申请公布日期
1993.01.30
申请号
SU19914902718
申请日期
1991.01.16
申请人
MANSUROV RAFIK M,SU
发明人
MANSUROV RAFIK M,SU
分类号
E21B4/00
主分类号
E21B4/00
代理机构
代理人
主权项
地址
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