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发明名称
STEAM NEEDLE TO THAW FROZEN GROUNDS
摘要
申请公布号
RU2023822(C1)
申请公布日期
1994.11.30
申请号
SU19914925902
申请日期
1991.04.05
申请人
STEPANOV VLADIMIR ALEKSANDROVICH
发明人
STEPANOV VLADIMIR A
分类号
E02F5/30;(IPC1-7):E02F5/30
主分类号
E02F5/30
代理机构
代理人
主权项
地址
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