Echo suppressor systems,申请号GB19630006985-传众专利搜索

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发明名称	Echo suppressor systems
摘要
申请公布号	GB1027287(A)	申请公布日期	1966.04.27
申请号	GB19630006985	申请日期	1963.02.21
申请人	WESTERN ELECTRIC COMPANY INCORPORATED	发明人
分类号	H04B3/20	主分类号	H04B3/20
代理机构		代理人
主权项
地址

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