Tone deflector for grand pianos,申请号US19360103885-传众专利搜索

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发明名称	Tone deflector for grand pianos
摘要
申请公布号	US2138669(A)	申请公布日期	1938.11.29
申请号	US19360103885	申请日期	1936.10.03
申请人	THE BALDWIN COMPANY	发明人	TOWER HERSCHEL E.
分类号	G10C1/04	主分类号	G10C1/04
代理机构		代理人
主权项
地址

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