Improvements in or relating to change-speed gearing for gramophones,申请号GB19510029224-传众专利搜索

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发明名称	Improvements in or relating to change-speed gearing for gramophones
摘要
申请公布号	GB708567(A)	申请公布日期	1954.05.05
申请号	GB19510029224	申请日期	1951.12.13
申请人	CECIL THOMAS CHAPMAN	发明人
分类号	G11B19/265	主分类号	G11B19/265
代理机构		代理人
主权项
地址

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