Illuminated road barricade,申请号US19480022391-传众专利搜索

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发明名称	Illuminated road barricade
摘要
申请公布号	US2583244(A)	申请公布日期	1952.01.22
申请号	US19480022391	申请日期	1948.04.21
申请人	UNDERWOOD WILFORD H	发明人	UNDERWOOD WILFORD H.
分类号	E01F13/02	主分类号	E01F13/02
代理机构		代理人
主权项
地址

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