Sätt att utvinna tantal och niab,申请号FID19033-传众专利搜索

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发明名称	Sätt att utvinna tantal och niab
摘要
申请公布号	FI19033(A)	申请公布日期	1941.04.26
申请号	FID19033	申请日期
申请人	SOCIETE GENERALE METALLURGIQUE D	发明人	LEEMANS JOSEPH PIERRE
分类号	(IPC1-7):C22B51/00	主分类号	(IPC1-7):C22B51/00
代理机构		代理人
主权项
地址

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