Muffler for suction cleaners,申请号US19350018779-传众专利搜索

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发明名称	Muffler for suction cleaners
摘要
申请公布号	US2130495(A)	申请公布日期	1938.09.20
申请号	US19350018779	申请日期	1935.04.29
申请人	THE HOOVER COMPANY	发明人	HOOVER HOWARD EARL
分类号	A47L9/00;A47L9/14	主分类号	A47L9/00
代理机构		代理人
主权项
地址

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