METHOD OF OBTAINING OXIDES OF RARE-EARTH ELEMENTS AND OF HIGH PURITY YTTRIUM,申请号PL19870268915-传众专利搜索

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发明名称	METHOD OF OBTAINING OXIDES OF RARE-EARTH ELEMENTS AND OF HIGH PURITY YTTRIUM
摘要
申请公布号	PL153836(B1)	申请公布日期	1991.06.28
申请号	PL19870268915	申请日期	1987.11.18
申请人		发明人
分类号	B01D15/04;C01F;C01F17/00;C22B59/00;(IPC1-7):C01F17/00	主分类号	B01D15/04
代理机构		代理人
主权项
地址

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