Color index device,申请号US19390287607-传众专利搜索

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发明名称	Color index device
摘要
申请公布号	US2253107(A)	申请公布日期	1941.08.19
申请号	US19390287607	申请日期	1939.07.31
申请人	WOOLSON BROOKS JOHN	发明人	BROOKS JOHN WOOLSON
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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