Device for reversing fan blades,申请号US19520298163-传众专利搜索

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发明名称	Device for reversing fan blades
摘要
申请公布号	US2792897(A)	申请公布日期	1957.05.21
申请号	US19520298163	申请日期	1952.07.10
申请人	A B SVENSKA FLAKTFABRIKEN	发明人	DAGRELL KNUT AKE
分类号	F04D29/36	主分类号	F04D29/36
代理机构		代理人
主权项
地址

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