Electric vacuum cleaner,申请号US19340750141-传众专利搜索

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发明名称	Electric vacuum cleaner
摘要
申请公布号	US2030367(A)	申请公布日期	1936.02.11
申请号	US19340750141	申请日期	1934.10.26
申请人	OTTO GRAVE	发明人	GRAVE OTTO
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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