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发明名称
MINERAL EXCAVATING METHOD
摘要
申请公布号
SU690186(A1)
申请公布日期
1979.10.05
申请号
SU19721830874
申请日期
1972.09.25
申请人
NII PO PROBLEMAM KURSKOJ MAGNITNOJ ANOMALII IM. L.D.SHEVYAKOVA
发明人
POPOV VLADILEN ,SU
分类号
(IPC1-7):E21C41/06
主分类号
(IPC1-7):E21C41/06
代理机构
代理人
主权项
地址
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