Pulse multiplex drop channel system,申请号US19450593621-传众专利搜索

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发明名称	Pulse multiplex drop channel system
摘要
申请公布号	US2537991(A)	申请公布日期	1951.01.16
申请号	US19450593621	申请日期	1945.05.14
申请人	FEDERAL TELEPHONE AND RADIO CORPORATION	发明人	GRIEG DONALD D.
分类号	H04J3/04	主分类号	H04J3/04
代理机构		代理人
主权项
地址

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