Improvements in or relating to the manufacture of refractory metals,申请号GB19550001794-传众专利搜索

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发明名称	Improvements in or relating to the manufacture of refractory metals
摘要
申请公布号	GB771139(A)	申请公布日期	1957.03.27
申请号	GB19550001794	申请日期	1955.01.20
申请人	COMPAGNIE FRANCAISE DES CARBURES DE CALCIUM	发明人
分类号	C22B34/10;C22B34/32	主分类号	C22B34/10
代理机构		代理人
主权项
地址

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