Procédé d'extraction de l'alumine,申请号FRD900374-传众专利搜索

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发明名称	Procédé d'extraction de l'alumine
摘要
申请公布号	FR900374(A)	申请公布日期	1945.06.27
申请号	FRD900374	申请日期	1943.12.04
申请人	DYCKERHOFF, PORTLAND-ZEMENTWERKE AKT. GES.	发明人
分类号	C01F7/06;C01F7/16	主分类号	C01F7/06
代理机构		代理人
主权项
地址

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