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发明名称
METHOD OF PIERCING HOLES IN SOIL AND RELEVANT DEVICE
摘要
申请公布号
SU1709054(A1)
申请公布日期
1992.01.30
申请号
SU19894715135
申请日期
1989.07.07
申请人
N-PROIZV OB FUNDAMENTOSTROENIYA "SOYUZSPETSFUNDAMENTSTROJ"
发明人
GRUZIN VLADIMIR V,SU;MOISEEV YURIJ N,SU;PONOMARENKO YURIJ E,SU;BELYAEV MIKHAIL A,SU;EROFEEV LEV V,SU
分类号
E21B7/24
主分类号
E21B7/24
代理机构
代理人
主权项
地址
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