AXIAL FLOW RING FAN.,申请号EP19900908230-传众专利搜索

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发明名称	AXIAL FLOW RING FAN.
摘要	An axial flow ring fan has improved efficiency and reduced noise by making the leading edge of each blade a generally sinusoidal shape.
申请公布号	EP0474685(B1)	申请公布日期	1994.12.14
申请号	EP19900908230	申请日期	1990.05.29
申请人	SIEMENS AKTIENGESELLSCHAFT	发明人	BRACKETT, STEPHEN, EDGAR;CHARLES, HERBERT, NOEL
分类号	F04D29/38;F04D29/32;(IPC1-7):F04D29/32	主分类号	F04D29/38
代理机构		代理人
主权项
地址

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