Improvements relating to electric vacuum cleaners,申请号GB19550012839-传众专利搜索

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发明名称	Improvements relating to electric vacuum cleaners
摘要
申请公布号	GB772796(A)	申请公布日期	1957.04.17
申请号	GB19550012839	申请日期	1955.05.03
申请人	GENERAL ELECTRIC COMPANY	发明人
分类号	A47L5/36;A47L9/28	主分类号	A47L5/36
代理机构		代理人
主权项
地址

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