Improvements in or relating to sound records and systems for recording the same,申请号GB19320000953-传众专利搜索

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发明名称	Improvements in or relating to sound records and systems for recording the same
摘要
申请公布号	GB395369(A)	申请公布日期	1933.07.12
申请号	GB19320000953	申请日期	1932.01.12
申请人	HENRY JOSEPH ROUND	发明人
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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