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发明名称
METHOD OF DRIVING IN MINING THICK FLAT COAL SEAM
摘要
申请公布号
SU1580005(A1)
申请公布日期
1990.07.23
申请号
SU19884371921
申请日期
1988.01.27
申请人
INST GORNOGO DELA IM.A.A.SKOCHINSKOGO;PROIZV OB PO DOBYCHE UGLYA "LENINSKUGOL"
发明人
ALADYSHEV VLADIMIR P,SU;SHAKHMATOV VYACHESLAV YA,SU;MAZKO IVAN N,SU;RAJS KONSTANTIN A,SU;KOKOSHA VALERIJ A,SU
分类号
E21C41/18
主分类号
E21C41/18
代理机构
代理人
主权项
地址
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