ELECTRIC-ARC FURNACE CROWN,申请号SU19904869900-传众专利搜索

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发明名称	ELECTRIC-ARC FURNACE CROWN
摘要
申请公布号	RU1788417(C)	申请公布日期	1993.01.15
申请号	SU19904869900	申请日期	1990.09.04
申请人	SHCHUKIN ALEKSANDR A,SU	发明人	SHCHUKIN ALEKSANDR A,SU
分类号	F27D1/02	主分类号	F27D1/02
代理机构		代理人
主权项
地址

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