Improvements in and relating to tone-arms or the like for gramophones and the like,申请号GB19290022510-传众专利搜索

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发明名称	Improvements in and relating to tone-arms or the like for gramophones and the like
摘要
申请公布号	GB336974(A)	申请公布日期	1930.10.22
申请号	GB19290022510	申请日期	1929.07.22
申请人	COLUMBIA GRAPHOPHONE COMPANY, LIMITED;EDWARD CLAYSON	发明人
分类号	G11B3/00	主分类号	G11B3/00
代理机构		代理人
主权项
地址

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