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发明名称
METHOD FOR ELIMINATION OF CAVING FUNNEL IN OPEN PIT
摘要
申请公布号
SU1740670(A1)
申请公布日期
1992.06.15
申请号
SU19904838855
申请日期
1990.06.12
申请人
SREDNEAZIATSKIJ NI PI TSVETNYKH METALLOV
发明人
MOROZOV VIKTOR D,SU;STRUNA MIKHAIL G,SU;BYZEEV VIKTOR K,SU;TUCHKOV PETR N,SU;VOROBEV IVAN A,SU;KLYUSHIN VLADIMIR P,SU;VASYURA VALERIJ K,SU
分类号
E21C41/26
主分类号
E21C41/26
代理机构
代理人
主权项
地址
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