Method of melting refractory metals,申请号US19520316093-传众专利搜索

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发明名称	Method of melting refractory metals
摘要
申请公布号	US2805148(A)	申请公布日期	1957.09.03
申请号	US19520316093	申请日期	1952.10.21
申请人	E. I. DU PONT DE NEMOURS AND COMPANY	发明人	LONG WILLIAM B. DE
分类号	C22B34/00	主分类号	C22B34/00
代理机构		代理人
主权项
地址

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