Improvements in or relating to electromagnetic sound recording and reproducing devices,申请号GB19530030084-传众专利搜索

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发明名称	Improvements in or relating to electromagnetic sound recording and reproducing devices
摘要
申请公布号	GB736334(A)	申请公布日期	1955.09.07
申请号	GB19530030084	申请日期	1953.10.30
申请人	WEBSTER-CHICAGO CORPORATION	发明人
分类号	G11B15/29	主分类号	G11B15/29
代理机构		代理人
主权项
地址

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