Improvements relating to apparatus for the recording and reproducing of sound,申请号GB19340026028-传众专利搜索

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发明名称	Improvements relating to apparatus for the recording and reproducing of sound
摘要
申请公布号	GB419520(A)	申请公布日期	1934.11.08
申请号	GB19340026028	申请日期	1933.03.08
申请人	HERBERT AUGUST HEINRICH SCHUELER	发明人
分类号	G11B17/02	主分类号	G11B17/02
代理机构		代理人
主权项
地址

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