Illuminating unit for railway signals,申请号US19310519354-传众专利搜索

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发明名称	Illuminating unit for railway signals
摘要
申请公布号	US2009504(A)	申请公布日期	1935.07.30
申请号	US19310519354	申请日期	1931.03.02
申请人	THE ADLAKE COMPANY	发明人	LARSON CARL H.
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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