Improvements in or relating to vacuum cleaners,申请号GB19480019517-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	GB645321(A)	申请公布日期	1950.10.25
申请号	GB19480019517	申请日期	1948.07.21
申请人	THE SINGER MANUFACTURING COMPANY	发明人
分类号	A47L5/30	主分类号	A47L5/30
代理机构		代理人
主权项
地址

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