Improvements in or relating to devices for the detection of insulation faults with respect to earth in polyphase alternating current electrical networks with an insulated neutral,申请号GB19640019331-传众专利搜索

发明名称	Improvements in or relating to devices for the detection of insulation faults with respect to earth in polyphase alternating current electrical networks with an insulated neutral
摘要
申请公布号	GB1020103(A)	申请公布日期	1966.02.16
申请号	GB19640019331	申请日期	1964.05.08
申请人	CHARBONNAGES DE FRANCE	发明人
分类号	G01R27/18;H02H3/16	主分类号	G01R27/18
代理机构		代理人
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