Vacuum cleaner nozzle having internal baffles,申请号US19480027472-传众专利搜索

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发明名称	Vacuum cleaner nozzle having internal baffles
摘要
申请公布号	US2581002(A)	申请公布日期	1952.01.01
申请号	US19480027472	申请日期	1948.05.17
申请人	CRESWELL DAVID R	发明人	CRESWELL DAVID R.
分类号	A47L9/02	主分类号	A47L9/02
代理机构		代理人
主权项
地址

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