Window cleaner or washer,申请号US19400344626-传众专利搜索

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发明名称	Window cleaner or washer
摘要
申请公布号	US2257391(A)	申请公布日期	1941.09.30
申请号	US19400344626	申请日期	1940.07.10
申请人	MCDONELL ALEXANDER D	发明人	MCDONELL ALEXANDER D.
分类号	A47L1/02	主分类号	A47L1/02
代理机构		代理人
主权项
地址

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