Safety signal device,申请号US19500190804-传众专利搜索

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发明名称	Safety signal device
摘要
申请公布号	US2671200(A)	申请公布日期	1954.03.02
申请号	US19500190804	申请日期	1950.10.18
申请人	LEDERER JEROME F	发明人	LEDERER JEROME F.
分类号	F16N29/04;G01N27/74	主分类号	F16N29/04
代理机构		代理人
主权项
地址

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