Improvements in or relating to alternating current frequency changers,申请号GB19310002218-传众专利搜索

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发明名称	Improvements in or relating to alternating current frequency changers
摘要
申请公布号	GB355636(A)	申请公布日期	1931.08.27
申请号	GB19310002218	申请日期	1931.01.22
申请人	TELEFUNKEN GESELLSCHAFT FUR DRAHTLOSE TELEGRAPHIE M.B.H.	发明人
分类号	H01F38/04	主分类号	H01F38/04
代理机构		代理人
主权项
地址

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