Improvements in or relating to sound reducing devices for suction cleaners,申请号GB19400017043-传众专利搜索

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发明名称	Improvements in or relating to sound reducing devices for suction cleaners
摘要
申请公布号	GB545531(A)	申请公布日期	1942.06.01
申请号	GB19400017043	申请日期	1940.11.29
申请人	HOOVER LIMITED	发明人
分类号	A47L5/30;A47L9/00;A47L9/14	主分类号	A47L5/30
代理机构		代理人
主权项
地址

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