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发明名称
DEVICE FOR FIELD TESTING OF ROCKS
摘要
申请公布号
RU2015328(C1)
申请公布日期
1994.06.30
申请号
SU19914907594
申请日期
1991.02.05
申请人
LODUS EVGENIJ VASILEVICH
发明人
LODUS EVGENIJ V
分类号
E21C39/00;(IPC1-7):E21C39/00
主分类号
E21C39/00
代理机构
代理人
主权项
地址
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