Improvements in electro-static sound reproducers,申请号GB19280031801-传众专利搜索

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发明名称	Improvements in electro-static sound reproducers
摘要
申请公布号	GB326131(A)	申请公布日期	1930.03.03
申请号	GB19280031801	申请日期	1928.11.01
申请人	COLIN KYLE	发明人
分类号	H04R19/00	主分类号	H04R19/00
代理机构		代理人
主权项
地址

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