Piano string plate construction,申请号US19380240243-传众专利搜索

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发明名称	Piano string plate construction
摘要
申请公布号	US2217021(A)	申请公布日期	1940.10.08
申请号	US19380240243	申请日期	1938.11.14
申请人	STORY & CLARK PIANO COMPANY	发明人	KLEPAE JOSEPH
分类号	G10C3/04	主分类号	G10C3/04
代理机构		代理人
主权项
地址

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