Iron smelting,申请号US19280262047-传众专利搜索

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发明名称	Iron smelting
摘要
申请公布号	US1756349(A)	申请公布日期	1930.04.29
申请号	US19280262047	申请日期	1928.03.15
申请人	FERRO CHEMICALS, INC.	发明人	FRANCHOT RICHARD
分类号	C21B5/00	主分类号	C21B5/00
代理机构		代理人
主权项
地址

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