Emergency break-in system for channel communication systems,申请号US19480027742-传众专利搜索

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发明名称	Emergency break-in system for channel communication systems
摘要
申请公布号	US2510316(A)	申请公布日期	1950.06.06
申请号	US19480027742	申请日期	1948.05.18
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	MARLOWE ELBERT W.
分类号	H04B1/54	主分类号	H04B1/54
代理机构		代理人
主权项
地址

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