Blast furnace charging top,申请号US19300447796-传众专利搜索

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发明名称	Blast furnace charging top
摘要
申请公布号	US1936374(A)	申请公布日期	1933.11.21
申请号	US19300447796	申请日期	1930.04.28
申请人	BARKS CHARLES O	发明人	BARKS CHARLES O.
分类号	C21B7/18	主分类号	C21B7/18
代理机构		代理人
主权项
地址

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