DEVICE FOR EXHAUST VENTILATION,申请号SU19904896230-传众专利搜索

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发明名称	DEVICE FOR EXHAUST VENTILATION
摘要
申请公布号	RU2021528(C1)	申请公布日期	1994.10.15
申请号	SU19904896230	申请日期	1990.10.23
申请人	DONETSKIJ NAUCHNO-ISSLEDOVATELSKIJ UGOLNYJ INSTITUT	发明人	GERSHUN OLEG S;LEPIKHOV ALEKSEJ G;MOISEEV MIKHAIL A;CHEPENKO ANATOLIJ V
分类号	E21F1/08;(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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