Appareil de diffusion,申请号FRD990905-传众专利搜索

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发明名称	Appareil de diffusion
摘要
申请公布号	FR990905(A)	申请公布日期	1951.09.27
申请号	FRD990905	申请日期	1949.07.16
申请人	KOPPERS COMPANY, INC.	发明人
分类号	B01D53/22	主分类号	B01D53/22
代理机构		代理人
主权项
地址

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