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发明名称
BOREHOLE FILTER
摘要
申请公布号
SU994697(A1)
申请公布日期
1983.02.07
申请号
SU19813366649
申请日期
1981.12.17
申请人
CHERVONTSEV EVGENIJ A,SU;MOSEV ALEKSANDR F,SU;ATAKULOV TAJMAS,SU;BESTUZHEV ALEKSANDR,SU
发明人
CHERVONTSEV EVGENIJ A,SU;MOSEV ALEKSANDR F,SU;ATAKULOV TAJMAS,SU;BESTUZHEV ALEKSANDR I,SU
分类号
E21B43/08;(IPC1-7):E21B43/08
主分类号
E21B43/08
代理机构
代理人
主权项
地址
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