Resonant chamber for accordions,申请号US19480052339-传众专利搜索

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法人/股东/高管

发明名称	Resonant chamber for accordions
摘要
申请公布号	US2502085(A)	申请公布日期	1950.03.28
申请号	US19480052339	申请日期	1948.10.01
申请人	ALFREDO FRONTALINI	发明人	FRONTALINI ALFREDO
分类号	G10D11/00	主分类号	G10D11/00
代理机构		代理人
主权项
地址

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