Improvements in or relating to phonographs,申请号GB19470009858-传众专利搜索

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发明名称	Improvements in or relating to phonographs
摘要
申请公布号	GB626169(A)	申请公布日期	1949.07.11
申请号	GB19470009858	申请日期	1947.04.14
申请人	THE SOUNDSCRIBER CORPORATION	发明人
分类号	G11B19/20	主分类号	G11B19/20
代理机构		代理人
主权项
地址

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