Improvements in or relating to vacuum cleaners,申请号GB19370005504-传众专利搜索

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发明名称	Improvements in or relating to vacuum cleaners
摘要
申请公布号	GB474876(A)	申请公布日期	1937.11.09
申请号	GB19370005504	申请日期	1937.02.24
申请人	QUADREX CORPORATION	发明人
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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