Open hearth furnace construction,申请号US19310507662-传众专利搜索

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发明名称	Open hearth furnace construction
摘要
申请公布号	US1900942(A)	申请公布日期	1933.03.14
申请号	US19310507662	申请日期	1931.01.09
申请人	THE AMERICAN ROLLING MILL COMPANY	发明人	MCCUTCHEON KENNETH C.
分类号	F27B3/16	主分类号	F27B3/16
代理机构		代理人
主权项
地址

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