BROAD BAND DYNAMIC LOUDSPEAKER,申请号GB19780039996-传众专利搜索

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发明名称	BROAD BAND DYNAMIC LOUDSPEAKER
摘要
申请公布号	GB1574857(A)	申请公布日期	1980.09.10
申请号	GB19780039996	申请日期	1977.03.21
申请人	BABBCO LTD	发明人
分类号	H04R9/02;H04R9/04;H04R9/06;H04R31/00;(IPC1-7):H04R9/04	主分类号	H04R9/02
代理机构		代理人
主权项
地址

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