METHOD OF MANUFACTURING OF NIOBIUM PENTOXIDE,申请号PL19880272092-传众专利搜索

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发明名称	METHOD OF MANUFACTURING OF NIOBIUM PENTOXIDE
摘要
申请公布号	PL153936(B1)	申请公布日期	1991.06.28
申请号	PL19880272092	申请日期	1988.04.25
申请人		发明人
分类号	C01G;C01G33/00;(IPC1-7):C01G33/00	主分类号	C01G
代理机构		代理人
主权项
地址

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