Musical instrument key,申请号US19610114353-传众专利搜索

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发明名称	Musical instrument key
摘要
申请公布号	US3120146(A)	申请公布日期	1964.02.04
申请号	US19610114353	申请日期	1961.06.02
申请人	PRATT, READ & CO., INCORPORATED	发明人	STILES GENE AUBREY
分类号	G10C3/12	主分类号	G10C3/12
代理机构		代理人
主权项
地址

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