Loudspeaker uses movable panels to re-direct rearward sound waves,申请号GB20090022448-传众专利搜索

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发明名称	Loudspeaker uses movable panels to re-direct rearward sound waves
摘要
申请公布号	GB2476477(A)	申请公布日期	2011.06.29
申请号	GB20090022448	申请日期	2009.12.22
申请人	MALCOLM HYDE	发明人	MALCOLM HYDE
分类号	H04R1/34	主分类号	H04R1/34
代理机构		代理人
主权项
地址

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