BI-DIRECTIONAL AUDIO AMPLIFIER UNITS,申请号GB19870003176-传众专利搜索

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发明名称	BI-DIRECTIONAL AUDIO AMPLIFIER UNITS
摘要
申请公布号	GB8703176(D0)	申请公布日期	1987.03.18
申请号	GB19870003176	申请日期	1987.02.11
申请人	HOWELLS RADIO LTD	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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