Improvements in sound recording apparatus,申请号GB19560012994-传众专利搜索

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发明名称	Improvements in sound recording apparatus
摘要
申请公布号	GB789577(A)	申请公布日期	1958.01.22
申请号	GB19560012994	申请日期	1956.04.27
申请人	ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI	发明人
分类号	G11B3/08	主分类号	G11B3/08
代理机构		代理人
主权项
地址

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