PUBLIC ADDRESS AMPLIFIER,申请号GB19870012469-传众专利搜索

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发明名称	PUBLIC ADDRESS AMPLIFIER
摘要
申请公布号	GB8712469(D0)	申请公布日期	1987.07.01
申请号	GB19870012469	申请日期	1987.05.27
申请人	KNIGHT, R S	发明人
分类号	H04R27/04	主分类号	H04R27/04
代理机构		代理人
主权项
地址

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