Improvements in electrical musical instruments,申请号GB19570004452-传众专利搜索

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发明名称	Improvements in electrical musical instruments
摘要
申请公布号	GB855713(A)	申请公布日期	1960.12.07
申请号	GB19570004452	申请日期	1957.02.08
申请人	JEAN ADOLPHE DEREUX	发明人
分类号	G10H3/10	主分类号	G10H3/10
代理机构		代理人
主权项
地址

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