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发明名称
DEEP-WELL CATCHING DEVICE
摘要
申请公布号
SU1382926(A1)
申请公布日期
1988.03.23
申请号
SU19864124738
申请日期
1986.09.25
申请人
GOJ VLADIMIR L,SU;SHURYGIN ALEKSANDR A,SU
发明人
GOJ VLADIMIR L,SU;SHURYGIN ALEKSANDR A,SU
分类号
E21B31/08
主分类号
E21B31/08
代理机构
代理人
主权项
地址
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