Improvements in and relating to automatic regulation of the volumes of speech and other audio-frequency currents,申请号GB19450000444-传众专利搜索

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发明名称	Improvements in and relating to automatic regulation of the volumes of speech and other audio-frequency currents
摘要
申请公布号	GB580547(A)	申请公布日期	1946.09.11
申请号	GB19450000444	申请日期	1945.02.01
申请人	LESLIE THOMAS ARMAN;PHILIP ROY HUTTON-PENMAN	发明人
分类号	H03G5/20;H03G7/02	主分类号	H03G5/20
代理机构		代理人
主权项
地址

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