MANY DIRECTIONAL PIEZO-ELECTRIC LOUD SPEAKER,申请号KR19860011405U-传众专利搜索

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发明名称	MANY DIRECTIONAL PIEZO-ELECTRIC LOUD SPEAKER
摘要
申请公布号	KR890006689(Y1)	申请公布日期	1989.09.30
申请号	KR19860011405U	申请日期	1986.07.30
申请人	SAMSUNG ELECTRONICS CO.,LTD.	发明人	LEE, MYUNG-HO
分类号	H04R17/00;(IPC1-7):H04R17/00	主分类号	H04R17/00
代理机构		代理人
主权项
地址

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