Improvements in and relating to electric-wave apparatus for the production of music,申请号GB19290006196-传众专利搜索

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发明名称	Improvements in and relating to electric-wave apparatus for the production of music
摘要
申请公布号	GB306849(A)	申请公布日期	1930.01.09
申请号	GB19290006196	申请日期	1929.02.25
申请人	RENE BERTRAND	发明人
分类号	G10H1/055	主分类号	G10H1/055
代理机构		代理人
主权项
地址

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