VENTILATORE, DEL TIPO A PALE CAVE, AVENTE L'INTERNO DI CIASCUNA PALA SOTTO VUOTO.,申请号IT19840019856-传众专利搜索

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发明名称	VENTILATORE, DEL TIPO A PALE CAVE, AVENTE L'INTERNO DI CIASCUNA PALA SOTTO VUOTO.
摘要	The cavity (14) inside each blade for the type of fan using hollow blades contains a high vacuum, whereby the noise is reduced.
申请公布号	IT8419856(D0)	申请公布日期	1984.02.29
申请号	IT19840019856	申请日期	1984.02.29
申请人	HUDSON ITALIANA S.P.A.	发明人	MASSIMILIANO NARDELLA
分类号	F01D5/18;F04D29/38	主分类号	F01D5/18
代理机构		代理人
主权项
地址

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