Apparatus for system of visual signal communication,申请号US19460694655-传众专利搜索

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发明名称	Apparatus for system of visual signal communication
摘要
申请公布号	US2519993(A)	申请公布日期	1950.08.22
申请号	US19460694655	申请日期	1946.09.03
申请人	THOMAS ROSS WELCH	发明人	ALLEN MOSES
分类号	G09F9/313;G09G3/00	主分类号	G09F9/313
代理机构		代理人
主权项
地址

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