Traffic signaling system,申请号US19310515722-传众专利搜索

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发明名称	Traffic signaling system
摘要
申请公布号	US2071494(A)	申请公布日期	1937.02.23
申请号	US19310515722	申请日期	1931.02.14
申请人	CROUSE-HINDS COMPANY	发明人	BRANDENBURGER HERBERT J.
分类号	G08G1/085	主分类号	G08G1/085
代理机构		代理人
主权项
地址

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