Improvements in mutes for use with trumpets, trombones and similar musical instruments,申请号GB19530008734-传众专利搜索

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发明名称	Improvements in mutes for use with trumpets, trombones and similar musical instruments
摘要
申请公布号	GB728992(A)	申请公布日期	1955.04.27
申请号	GB19530008734	申请日期	1953.03.30
申请人	GEORGE EVANS	发明人
分类号	G10D9/06	主分类号	G10D9/06
代理机构		代理人
主权项
地址

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