Intensity control device for electrical musical instrument,申请号US19550484777-传众专利搜索

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发明名称	Intensity control device for electrical musical instrument
摘要
申请公布号	US2809547(A)	申请公布日期	1957.10.15
申请号	US19550484777	申请日期	1955.01.28
申请人	NATIONAL RESEARCH COUNCIL	发明人	CAINE HUGH LE
分类号	G10H1/055	主分类号	G10H1/055
代理机构		代理人
主权项
地址

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