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发明名称
PERCUSSIVE-ACTION DEVICE FOR FORMING HOLES IN SOIL
摘要
申请公布号
SU652279(A1)
申请公布日期
1979.03.15
申请号
SU19752173251
申请日期
1975.10.01
申请人
INST GORNOGO DELA SO AN SSSR
发明人
SUDNISHNIKOV BORIS V,SU;TUPITSYN KONSTANTIN K,SU;TUPITSYN SERGEJ K,SU;KAMENSKIJ VENIAMIN V,SU;KOSTYLEV ALEKSANDR D,SU;TERSKOV ALEKSEJ D,SU
分类号
E21B7/26;E02F5/18;E21B4/14;(IPC1-7):E02F5/18;E02D17/14
主分类号
E21B7/26
代理机构
代理人
主权项
地址
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