Apparatus for comparing the color of liquid coffee,申请号US19400355551-传众专利搜索

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发明名称	Apparatus for comparing the color of liquid coffee
摘要
申请公布号	US2270457(A)	申请公布日期	1942.01.20
申请号	US19400355551	申请日期	1940.09.06
申请人	MARTIN JOHN B	发明人	MARTIN JOHN B.
分类号		主分类号
代理机构		代理人
主权项
地址

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