Gramophone-tone-arm joint,申请号US19280280871-传众专利搜索

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发明名称	Gramophone-tone-arm joint
摘要
申请公布号	US1792957(A)	申请公布日期	1931.02.17
申请号	US19280280871	申请日期	1928.05.26
申请人	JAMES WRIGHT ALBERT FREDERICK	发明人	WRIGHT ALBERT FREDERICK JAMES
分类号	G11B3/42	主分类号	G11B3/42
代理机构		代理人
主权项
地址

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