Improvements in the electrical production of musical sounds,申请号GB19390009935-传众专利搜索

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发明名称	Improvements in the electrical production of musical sounds
摘要
申请公布号	GB528575(A)	申请公布日期	1940.11.01
申请号	GB19390009935	申请日期	1939.03.30
申请人	ALBERT HENRY MIDGLEY;ALBERT MORRELL MIDGLEY	发明人
分类号	G10H1/14	主分类号	G10H1/14
代理机构		代理人
主权项
地址

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