Automatic volume control,申请号US19470729639-传众专利搜索

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发明名称	Automatic volume control
摘要
申请公布号	US2552586(A)	申请公布日期	1951.05.15
申请号	US19470729639	申请日期	1947.02.19
申请人	READ THOMAS A;FUSFELD HERBERT I	发明人	READ THOMAS A.;FUSFELD HERBERT I.
分类号	H03G3/22	主分类号	H03G3/22
代理机构		代理人
主权项
地址

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