Magnetic floor cleaning device,申请号US19630267149-传众专利搜索

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发明名称	Magnetic floor cleaning device
摘要
申请公布号	US3206783(A)	申请公布日期	1965.09.21
申请号	US19630267149	申请日期	1963.03.22
申请人	WILLIAM SCHWARTZ	发明人	SCHWARTZ WILLIAM
分类号	A47L13/41	主分类号	A47L13/41
代理机构		代理人
主权项
地址

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