Keyboard for accordions,申请号US19330681008-传众专利搜索

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发明名称	Keyboard for accordions
摘要
申请公布号	US1935483(A)	申请公布日期	1933.11.14
申请号	US19330681008	申请日期	1933.07.18
申请人	PETERSON ERNEST E	发明人	PETERSON ERNEST E.
分类号	F23Q2/14	主分类号	F23Q2/14
代理机构		代理人
主权项
地址

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