SHAFT FURNACE SHELL COOLING SYSTEM,申请号USD3554517-传众专利搜索

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发明名称	SHAFT FURNACE SHELL COOLING SYSTEM
摘要
申请公布号	US3554517(A)	申请公布日期	1971.01.12
申请号	USD3554517	申请日期	1968.11.18
申请人	BETHLEHEM STEEL CORP.	发明人	WILLIAM G. SEACREST
分类号	C21B7/10;(IPC1-7):C21B7/10	主分类号	C21B7/10
代理机构		代理人
主权项
地址

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