Self-luminous device,申请号US19320601757-传众专利搜索

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发明名称	Self-luminous device
摘要
申请公布号	US1948718(A)	申请公布日期	1934.02.27
申请号	US19320601757	申请日期	1932.03.29
申请人	RADIUM DIAL COMPANY	发明人	KELLY JOSEPH A.
分类号	F21K2/00;F21V9/16	主分类号	F21K2/00
代理机构		代理人
主权项
地址

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