Time element relay,申请号US19510256635-传众专利搜索

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发明名称	Time element relay
摘要
申请公布号	US2748857(A)	申请公布日期	1956.06.05
申请号	US19510256635	申请日期	1951.11.16
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	FIELD OSCAR S.
分类号	H01H43/12	主分类号	H01H43/12
代理机构		代理人
主权项
地址

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