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经营范围
发明名称
METHOD OF WORKING THICK COAL BEDS
摘要
申请公布号
SU916757(A1)
申请公布日期
1982.03.30
申请号
SU19802882128
申请日期
1980.02.13
申请人
TOMASHEVSKIJ LYUDVIG P,SU;MILOVANOV IVAN B,SU;SUCHKOV EVGENIJ V,SU;PETROV ALEKSANDR,SU
发明人
TOMASHEVSKIJ LYUDVIG P,SU;MILOVANOV IVAN B,SU;SUCHKOV EVGENIJ V,SU;PETROV ALEKSANDR I,SU
分类号
(IPC1-7):E21C41/04
主分类号
(IPC1-7):E21C41/04
代理机构
代理人
主权项
地址
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