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发明名称
METHOD OF DEGASSING COAL SEAM
摘要
申请公布号
RU1800060(C)
申请公布日期
1993.03.07
申请号
SU19904855570
申请日期
1990.07.30
申请人
G MAKEEVSKIJ NII PO BEZOPASNOSTI RABOT V GORNOJ PROMYSHLENNOSTI
发明人
PANTELEEV ALEKSANDR I,SU;FRIDMAN IOSIF S,SU;PANTELEEV GENNADIJ A,SU
分类号
E21F7/00
主分类号
E21F7/00
代理机构
代理人
主权项
地址
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