Carpet and floor cleaner,申请号US19330694151-传众专利搜索

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发明名称	Carpet and floor cleaner
摘要
申请公布号	US2100806(A)	申请公布日期	1937.11.30
申请号	US19330694151	申请日期	1933.10.18
申请人	BERNARD KERN	发明人	KERN BERNARD
分类号	A47L11/40	主分类号	A47L11/40
代理机构		代理人
主权项
地址

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