Perfectionnements au procédé d'extraction de l'étain des minerais, alliages, scories et déchets d'étain,申请号FRD692640-传众专利搜索

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发明名称	Perfectionnements au procédé d'extraction de l'étain des minerais, alliages, scories et déchets d'étain
摘要
申请公布号	FR692640(A)	申请公布日期	1930.11.07
申请号	FRD692640	申请日期	1929.06.22
申请人	SOCIETE D'ELECTROCHIMIE, D'ELECTROMETALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE	发明人
分类号	C01G19/00;C22B25/00	主分类号	C01G19/00
代理机构		代理人
主权项
地址

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