Verfahren zur Gewinnung von reinem Aluminiumoxyd,申请号DE1933D067082D-传众专利搜索

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发明名称	Verfahren zur Gewinnung von reinem Aluminiumoxyd
摘要
申请公布号	DE677276(C)	申请公布日期	1939.06.24
申请号	DE1933D067082D	申请日期	1933.12.08
申请人	JULES DORREN;LUCIEN FRELING	发明人
分类号	C01F7/22	主分类号	C01F7/22
代理机构		代理人
主权项
地址

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