Improvements in or relating to loudspeakers,申请号GB19470024849-传众专利搜索

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发明名称	Improvements in or relating to loudspeakers
摘要
申请公布号	GB659063(A)	申请公布日期	1951.10.17
申请号	GB19470024849	申请日期	1947.09.10
申请人	KOLSTER BRANDES LIMITED	发明人	CHAPMAN ROGER;TRIER ROBERT HENRY
分类号	H04R1/36	主分类号	H04R1/36
代理机构		代理人
主权项
地址

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