Improvements in or relating to direct current, constant voltage regulating circuits,申请号GB19460022319-传众专利搜索

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发明名称	Improvements in or relating to direct current, constant voltage regulating circuits
摘要
申请公布号	GB620849(A)	申请公布日期	1949.03.31
申请号	GB19460022319	申请日期	1946.07.26
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	G05F1/52	主分类号	G05F1/52
代理机构		代理人
主权项
地址

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