Improvements in or relating to the manufacture of pure refractory metals,申请号GB19560038569-传众专利搜索

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发明名称	Improvements in or relating to the manufacture of pure refractory metals
摘要
申请公布号	GB841765(A)	申请公布日期	1960.07.20
申请号	GB19560038569	申请日期	1956.12.18
申请人	E. I. DU PONT DE NEMOURS AND COMPANY	发明人
分类号	C22B4/00;C22B34/12	主分类号	C22B4/00
代理机构		代理人
主权项
地址

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