Selective calling device,申请号US19220582521-传众专利搜索

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发明名称	Selective calling device
摘要
申请公布号	US1763390(A)	申请公布日期	1930.06.10
申请号	US19220582521	申请日期	1922.08.17
申请人	RADIO CORPORATION	发明人	DAVIS WILFRED JOHN
分类号	H04L15/26	主分类号	H04L15/26
代理机构		代理人
主权项
地址

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