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发明名称
METHOD OF DEGASSING GAS-BEARING COAL SEAMS
摘要
申请公布号
SU591591(A1)
申请公布日期
1978.02.05
申请号
SU19731870677
申请日期
1973.01.12
申请人
MO GORNYJ INSTITUT
发明人
PETROVSKAYA ELENA ALEKSEEVNA,SU;NOZHKIN NIKOLAJ VASILEVICH,SU;VASYUCHKOV YURIJ FEDOROVICH,SU
分类号
E21F7/00;(IPC1-7):E21F7/00
主分类号
E21F7/00
代理机构
代理人
主权项
地址
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