High fidelity amplifying apparatus,申请号US19540468274-传众专利搜索

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发明名称	High fidelity amplifying apparatus
摘要
申请公布号	US2812382(A)	申请公布日期	1957.11.05
申请号	US19540468274	申请日期	1954.11.12
申请人	MICHAEL STANLEY H	发明人	MICHAEL STANLEY H.
分类号	H04R1/02	主分类号	H04R1/02
代理机构		代理人
主权项
地址

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