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发明名称
METHOD OF MINING A THICK STEEP MINERAL BED WITH GOAF-FILLING
摘要
申请公布号
SU1472673(A1)
申请公布日期
1989.04.15
申请号
SU19864113636
申请日期
1986.06.11
申请人
VNI PK UGOLNYJ I "KUZNIUI"
发明人
SUKHORUKOV VLADIMIR A,SU
分类号
主分类号
代理机构
代理人
主权项
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