ALTOPARLANTE AVENTE UNA BOBINA FONICA ED UN TRASDUTTORE PIEZO ELETTRICO DI REAZIONE,申请号IT19740068820-传众专利搜索

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发明名称	ALTOPARLANTE AVENTE UNA BOBINA FONICA ED UN TRASDUTTORE PIEZO ELETTRICO DI REAZIONE
摘要
申请公布号	IT1011942(B)	申请公布日期	1977.02.10
申请号	IT19740068820	申请日期	1974.06.10
申请人	PHILIPS NV	发明人
分类号	H04R3/04;H04R3/00;(IPC1-7):H04R/	主分类号	H04R3/04
代理机构		代理人
主权项
地址

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