Keyboard assembly for a musical instrument,申请号US19640381792-传众专利搜索

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发明名称	Keyboard assembly for a musical instrument
摘要
申请公布号	US3263550(A)	申请公布日期	1966.08.02
申请号	US19640381792	申请日期	1964.07.10
申请人	PROLL PETER S	发明人	PROLL PETER S.
分类号	G10B3/10;G10D11/02	主分类号	G10B3/10
代理机构		代理人
主权项
地址

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