Traffic light post,申请号US19340750995-传众专利搜索

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发明名称	Traffic light post
摘要
申请公布号	US2094741(A)	申请公布日期	1937.10.05
申请号	US19340750995	申请日期	1934.11.01
申请人	HANNS GRUSSENDORF;ALEXANDER VARREN	发明人	GRUSSENDORF HANNS;VARREN ALEXANDER
分类号	E01F9/016	主分类号	E01F9/016
代理机构		代理人
主权项
地址

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