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发明名称
BOREHOLE EXPANDER
摘要
申请公布号
SU976006(A1)
申请公布日期
1982.11.23
申请号
SU19813306677
申请日期
1981.06.22
申请人
IVANCHA PAVEL P,SU;SLYUSARENKO STEPAN A,SU;GALATA YURIJ V,SU;KATS EDUARD,SU
发明人
IVANCHA PAVEL P,SU;SLYUSARENKO STEPAN A,SU;GALATA YURIJ V,SU;KATS EDUARD I,SU
分类号
E21B7/28;(IPC1-7):E21B7/28
主分类号
E21B7/28
代理机构
代理人
主权项
地址
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