Vacuum street cleaner,申请号US19450572910-传众专利搜索

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发明名称	Vacuum street cleaner
摘要
申请公布号	US2496028(A)	申请公布日期	1950.01.31
申请号	US19450572910	申请日期	1945.01.15
申请人		发明人
分类号	A47L7/00;E01H1/08	主分类号	A47L7/00
代理机构		代理人
主权项
地址

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