Procédé de préparation d'acide tungstique,申请号FR19660057640-传众专利搜索

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发明名称	Procédé de préparation d'acide tungstique
摘要
申请公布号	FR1476139(A)	申请公布日期	1967.04.07
申请号	FR19660057640	申请日期	1966.04.14
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	C01G41/00;C22B34/36	主分类号	C01G41/00
代理机构		代理人
主权项
地址

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