An improved cooled door frame for siemens martin open hearth furnaces,申请号GB19540032423-传众专利搜索

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发明名称	An improved cooled door frame for siemens martin open hearth furnaces
摘要
申请公布号	GB754636(A)	申请公布日期	1956.08.08
申请号	GB19540032423	申请日期	1954.11.09
申请人	HEINRICH VORKAUF	发明人
分类号	F23M7/00	主分类号	F23M7/00
代理机构		代理人
主权项
地址

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