Magnetic sound transduction,申请号GB19540032739-传众专利搜索

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发明名称	Magnetic sound transduction
摘要
申请公布号	GB762928(A)	申请公布日期	1956.12.05
申请号	GB19540032739	申请日期	1954.11.11
申请人	RADIO CORPORATION OF AMERICA	发明人
分类号	G11B5/02;G11B27/36	主分类号	G11B5/02
代理机构		代理人
主权项
地址

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