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发明名称
DEVICE FOR MAKING HOLES IN THE GROUND
摘要
申请公布号
EP0418402(A4)
申请公布日期
1992.11.04
申请号
EP19900908145
申请日期
1990.02.15
申请人
MOSKOVSKOE NAUCHNO-PROIZVODSTVENNOE OBIEDINENIE PO MEKHANIZIROVANNOMU STROITELNOMU INSTRUMENTU I OTDELOCHNYM MASHINAM
发明人
DOBROSELSKY, PETR VLADIMIROVICH;NIKOLAEV, IGOR VLADIMIROVICH
分类号
E21B4/14;E21B7/26;(IPC1-7):E02F5/16
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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