Time element device,申请号US19280292884-传众专利搜索

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发明名称	Time element device
摘要
申请公布号	US1856045(A)	申请公布日期	1932.04.26
申请号	US19280292884	申请日期	1928.07.14
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	WIGHT SEDGWICK N.
分类号	H01H61/02	主分类号	H01H61/02
代理机构		代理人
主权项
地址

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