Procédé d'obtention d'anhydride tungstique,申请号FRD909995-传众专利搜索

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发明名称	Procédé d'obtention d'anhydride tungstique
摘要
申请公布号	FR909995(A)	申请公布日期	1946.05.23
申请号	FRD909995	申请日期	1945.03.28
申请人	BREVETS AERO-MECANIQUES S. A.	发明人
分类号	C01G41/00	主分类号	C01G41/00
代理机构		代理人
主权项
地址

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