Universal alternating current relay,申请号US19220556990-传众专利搜索

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发明名称	Universal alternating current relay
摘要
申请公布号	US1882846(A)	申请公布日期	1932.10.18
申请号	US19220556990	申请日期	1922.04.27
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	HOWE WINTHROP K.
分类号	H01H53/10	主分类号	H01H53/10
代理机构		代理人
主权项
地址

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