METHOD OF FIGHTING GAS AT UNDERGROUND MINING OF COAL DEPOSITS,申请号SU19721820529-传众专利搜索

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发明名称	METHOD OF FIGHTING GAS AT UNDERGROUND MINING OF COAL DEPOSITS
摘要
申请公布号	SU635249(A1)	申请公布日期	1978.11.30
申请号	SU19721820529	申请日期	1972.08.16
申请人	NOZHKIN NIKOLAJ VASILEVICH,SU	发明人	NOZHKIN NIKOLAJ VASILEVICH,SU
分类号	E21F5/00;(IPC1-7):E21F5/00	主分类号	E21F5/00
代理机构		代理人
主权项
地址

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