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发明名称
METHOD OF DIRECTING ARTIFICIAL PILLARS
摘要
申请公布号
SU909173(A1)
申请公布日期
1982.02.28
申请号
SU19802939983
申请日期
1980.06.13
申请人
INST GORNOGO DELA IM.A.A SKOCHINSKOGO
发明人
ALADYSHEV VLADIMIR P,SU;POPOV SERGEJ F,SU;GAPANOVICH LEONID N,SU;GROMOV YURIJ V,SU
分类号
(IPC1-7):E21C41/04;E21C41/06
主分类号
(IPC1-7):E21C41/04
代理机构
代理人
主权项
地址
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