INPUT SIGNAL LEVEL CONTROL FOR COMMUNICATIONS CHANNELS,申请号GB19770012050-传众专利搜索

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发明名称	INPUT SIGNAL LEVEL CONTROL FOR COMMUNICATIONS CHANNELS
摘要
申请公布号	GB1599401(A)	申请公布日期	1981.09.30
申请号	GB19770012050	申请日期	1978.04.18
申请人	NATIONAL RESEARCH DEVELOPMENT CORP	发明人
分类号	H03G3/20;H04B3/06;(IPC1-7):H03G3/20	主分类号	H03G3/20
代理机构		代理人
主权项
地址

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