Floor polishing attachment for suction cleaners,申请号US19280320304-传众专利搜索

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发明名称	Floor polishing attachment for suction cleaners
摘要
申请公布号	US1853047(A)	申请公布日期	1932.04.12
申请号	US19280320304	申请日期	1928.11.19
申请人	THE HOOVER COMPANY	发明人	HAMPSON EDWARD A.
分类号	A47L11/204	主分类号	A47L11/204
代理机构		代理人
主权项
地址

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