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发明名称
METHOD FOR VIBRATING CEMENTATION OF CASING PIPES IN WELLS
摘要
申请公布号
RU2094590(C1)
申请公布日期
1997.10.27
申请号
RU19920012958
申请日期
1992.12.21
申请人
BAKULIN ANDREJ V
发明人
BAKULIN ANDREJ V
分类号
E21B33/13;(IPC1-7):E21B33/13
主分类号
E21B33/13
代理机构
代理人
主权项
地址
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