Method of replacing blast furnace bells and hoppers,申请号US19610131758-传众专利搜索

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发明名称	Method of replacing blast furnace bells and hoppers
摘要
申请公布号	US3056518(A)	申请公布日期	1962.10.02
申请号	US19610131758	申请日期	1961.08.16
申请人	KOPPERS COMPANY, INC.	发明人	POWELL RUSSELL A.
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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