Centrifugal fan wheel,申请号US19520319375-传众专利搜索

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发明名称	Centrifugal fan wheel
摘要
申请公布号	US2767906(A)	申请公布日期	1956.10.23
申请号	US19520319375	申请日期	1952.11.07
申请人	DOYLE VACUUM CLEANER COMPANY	发明人	DOYLE DEWEY I.
分类号	F04D29/30	主分类号	F04D29/30
代理机构		代理人
主权项
地址

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