Port construction and gas burner for open hearth furnaces,申请号US19200421755-传众专利搜索

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发明名称	Port construction and gas burner for open hearth furnaces
摘要
申请公布号	US1786293(A)	申请公布日期	1930.12.23
申请号	US19200421755	申请日期	1920.11.04
申请人	DOWNS GEORGE F;MILLER JR HERBERT F	发明人	DOWNS GEORGE F.;JR. HERBERT F. MILLER,
分类号	F23D14/00	主分类号	F23D14/00
代理机构		代理人
主权项
地址

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