Refining of steel,申请号US19300447770-传众专利搜索

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发明名称	Refining of steel
摘要
申请公布号	US1949529(A)	申请公布日期	1934.03.06
申请号	US19300447770	申请日期	1930.04.26
申请人	ALLEGHENY STEEL COMPANY	发明人	BROWNE VERE B.
分类号	C21C7/00	主分类号	C21C7/00
代理机构		代理人
主权项
地址

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