Projector for light signals,申请号US19240758665-传众专利搜索

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发明名称	Projector for light signals
摘要
申请公布号	US1748913(A)	申请公布日期	1930.02.25
申请号	US19240758665	申请日期	1924.12.29
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	DAY SALISBURY M.
分类号	B61L5/18	主分类号	B61L5/18
代理机构		代理人
主权项
地址

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