Color chart,申请号US19370169923-传众专利搜索

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法人/股东/高管

发明名称	Color chart
摘要
申请公布号	US2196397(A)	申请公布日期	1940.04.09
申请号	US19370169923	申请日期	1937.10.20
申请人	MCDONALD STERLING B	发明人	MCDONALD STERLING B.
分类号	G01J3/52	主分类号	G01J3/52
代理机构		代理人
主权项
地址

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