Radio telephone system,申请号US19410374106-传众专利搜索

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发明名称	Radio telephone system
摘要
申请公布号	US2280421(A)	申请公布日期	1942.04.21
申请号	US19410374106	申请日期	1941.01.11
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	CHAPPELL VERE C.;DICKE OSCAR H.
分类号	H04B5/00	主分类号	H04B5/00
代理机构		代理人
主权项
地址

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