Automatic action for player pianos,申请号US19280325455-传众专利搜索

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发明名称	Automatic action for player pianos
摘要
申请公布号	US1797741(A)	申请公布日期	1931.03.24
申请号	US19280325455	申请日期	1928.12.12
申请人	THE AEOLIAN COMPANY	发明人	VOTEY EDWIN SCOTT
分类号	G10F1/02	主分类号	G10F1/02
代理机构		代理人
主权项
地址

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