Improvements in or relating to magnetic arrangements,申请号GB19570012228-传众专利搜索

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发明名称	Improvements in or relating to magnetic arrangements
摘要
申请公布号	GB860439(A)	申请公布日期	1961.02.08
申请号	GB19570012228	申请日期	1957.04.15
申请人	PHILIPS ELECTRICAL INDUSTRIES LIMITED	发明人
分类号	H01F7/02;H04R9/02	主分类号	H01F7/02
代理机构		代理人
主权项
地址

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