Tuning device for musical instruments,申请号US19560587861-传众专利搜索

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发明名称	Tuning device for musical instruments
摘要
申请公布号	US2802387(A)	申请公布日期	1957.08.13
申请号	US19560587861	申请日期	1956.05.28
申请人	BUSHNELL FREDERICK J	发明人	BUSHNELL FREDERICK J.
分类号	G10D9/00	主分类号	G10D9/00
代理机构		代理人
主权项
地址

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