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发明名称
HYDROPNEUMATIC IMPACT GEAR FOR FORMING WELLS IN SOIL
摘要
申请公布号
SU564392(A1)
申请公布日期
1977.07.05
申请号
SU19762320684
申请日期
1976.02.02
申请人
KARAGANDINSKIJ POLT INSTITUT
发明人
ESHUTKIN DMITRIJ N,SU;PIVEN GENNADIJ G,SU;KHARCHENKO VLADIMIR V,SU;SMIRNOV YURIJ M,SU;TSOJ VALERIJ ,SU
分类号
E02F5/18;(IPC1-7):E02F5/18;E21C3/20
主分类号
E02F5/18
代理机构
代理人
主权项
地址
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