Synthetic cryolite prodn,申请号CH19690002844-传众专利搜索

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发明名称	Synthetic cryolite prodn
摘要
申请公布号	CH508554(A)	申请公布日期	1971.06.15
申请号	CH19690002844	申请日期	1969.02.22
申请人	BUSS AG	发明人
分类号	C01F7/54;(IPC1-7):C01F7/54	主分类号	C01F7/54
代理机构		代理人
主权项
地址

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