Method of and apparatus for electrically recording and reproducing sound or other vibrations,申请号US19310556743-传众专利搜索

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法人/股东/高管

发明名称	Method of and apparatus for electrically recording and reproducing sound or other vibrations
摘要
申请公布号	US2030973(A)	申请公布日期	1936.02.18
申请号	US19310556743	申请日期	1931.08.13
申请人	MERLE DUSTON	发明人	DUSTON MERLE
分类号	G11B11/00	主分类号	G11B11/00
代理机构		代理人
主权项
地址

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