ION SPEAKER WITHOUT DISCHARGE CHAMBER,申请号JP19780031519-传众专利搜索

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发明名称	ION SPEAKER WITHOUT DISCHARGE CHAMBER
摘要
申请公布号	JPS54123940(A)	申请公布日期	1979.09.26
申请号	JP19780031519	申请日期	1978.03.17
申请人	HATAKE KIYOSHI	发明人	HATAKE KIYOSHI
分类号	H04R23/00	主分类号	H04R23/00
代理机构		代理人
主权项
地址

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