Improvements in or relating to magnetic amplifiers,申请号GB19490014586-传众专利搜索

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发明名称	Improvements in or relating to magnetic amplifiers
摘要
申请公布号	GB671836(A)	申请公布日期	1952.05.14
申请号	GB19490014586	申请日期	1949.05.31
申请人	RAOUL WILLHEIM	发明人
分类号	H03F9/02	主分类号	H03F9/02
代理机构		代理人
主权项
地址

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