Carrier communication system,申请号US19480033410-传众专利搜索

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发明名称	Carrier communication system
摘要
申请公布号	US2535446(A)	申请公布日期	1950.12.26
申请号	US19480033410	申请日期	1948.06.16
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	MITCHELL DOREN
分类号	H04M7/16	主分类号	H04M7/16
代理机构		代理人
主权项
地址

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