Device for converting electric oscillations into mechanical vibrations,申请号US19270181650-传众专利搜索

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发明名称	Device for converting electric oscillations into mechanical vibrations
摘要
申请公布号	US1866565(A)	申请公布日期	1932.07.12
申请号	US19270181650	申请日期	1927.04.07
申请人	RADIO CORPORATION	发明人	HOLST GILLES;OOSTERHUIS EKKO
分类号	H04R11/00	主分类号	H04R11/00
代理机构		代理人
主权项
地址

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