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发明名称
SAMPLER FOR PACKER
摘要
申请公布号
RU2082002(C1)
申请公布日期
1997.06.20
申请号
RU19940031148
申请日期
1994.08.25
申请人
SHMELEV VALERIJ I
发明人
SHMELEV VALERIJ I
分类号
E21B49/08;(IPC1-7):E21B49/08
主分类号
E21B49/08
代理机构
代理人
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地址
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