Improvements in electrical pick-ups for gramophones,申请号GB19450014154-传众专利搜索

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发明名称	Improvements in electrical pick-ups for gramophones
摘要
申请公布号	GB638481(A)	申请公布日期	1950.06.07
申请号	GB19450014154	申请日期	1945.06.05
申请人	MURPHY RADIO LIMITED;JOHN HERMANN BALEAN	发明人
分类号	H04R1/16;H04R9/12;H04R11/08	主分类号	H04R1/16
代理机构		代理人
主权项
地址

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