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发明名称
DEVICE FOR HOLE DRILLING
摘要
申请公布号
RU2053367(C1)
申请公布日期
1996.01.27
申请号
SU19925024044
申请日期
1992.01.24
申请人
INZHENERNO-PROIZVODSTVENNYJ TSENTR "GEOTEKH"
发明人
LUZGANOV VLADIMIR IVANOVICH;LUZGANOVA NATALYA V
分类号
E21D1/06;(IPC1-7):E21D1/06
主分类号
E21D1/06
代理机构
代理人
主权项
地址
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