METHOD OF WORKING STEEP COAL SEAMS,申请号SU19782698244-传众专利搜索

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发明名称	METHOD OF WORKING STEEP COAL SEAMS
摘要
申请公布号	SU768983(A1)	申请公布日期	1980.10.07
申请号	SU19782698244	申请日期	1978.12.15
申请人	UMNOV ANATOLIJ E,SU;VLASOV VLADIMIR N,SU;MUKHIN ZHORES G,SU;UMNOV GENNADIJ E,SU	发明人	UMNOV ANATOLIJ E,SU;VLASOV VLADIMIR N,SU;MUKHIN ZHORES G,SU;UMNOV GENNADIJ E,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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