EJECTOR FOR VENTILATING MINE WORKINGS THROUGH BOREHOLE,申请号SU19782637756-传众专利搜索

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发明名称	EJECTOR FOR VENTILATING MINE WORKINGS THROUGH BOREHOLE
摘要
申请公布号	SU763605(A1)	申请公布日期	1980.09.15
申请号	SU19782637756	申请日期	1978.07.06
申请人	VOSTOCHNYJ NI GORNORUDNYJ INSTITUT	发明人	CHIRKOV YURIJ S,SU;POKIDCHENKO VYACHESLAV M,SU
分类号	E21F1/08;E21F5/00;(IPC1-7):E21F1/08	主分类号	E21F1/08
代理机构		代理人
主权项
地址

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