Coffee filter,申请号US19450594458-传众专利搜索

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发明名称	Coffee filter
摘要
申请公布号	US2446499(A)	申请公布日期	1948.08.03
申请号	US19450594458	申请日期	1945.05.18
申请人	DENBERG DONALD E VAN	发明人	DENBERG DONALD E. VAN
分类号	A47J31/043	主分类号	A47J31/043
代理机构		代理人
主权项
地址

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