Nozzle and filtering device for vacuum cleaners,申请号US19590844934-传众专利搜索

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发明名称	Nozzle and filtering device for vacuum cleaners
摘要
申请公布号	US2974346(A)	申请公布日期	1961.03.14
申请号	US19590844934	申请日期	1959.10.07
申请人	JOHN OSTER MANUFACTURING CO.	发明人	HAHN PAUL T.
分类号	A47L5/24	主分类号	A47L5/24
代理机构		代理人
主权项
地址

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