Procédé et dispositif pour la production d'alumine pure,申请号FRD822430-传众专利搜索

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发明名称	Procédé et dispositif pour la production d'alumine pure
摘要
申请公布号	FR822430(A)	申请公布日期	1937.12.30
申请号	FRD822430	申请日期	1937.05.28
申请人		发明人	BURMAN AXEL SIGURD
分类号	C01F7/20	主分类号	C01F7/20
代理机构		代理人
主权项
地址

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