DIFFERENTIAL CURRENT RELAY SYSTEM,申请号JP19760023245-传众专利搜索

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发明名称	DIFFERENTIAL CURRENT RELAY SYSTEM
摘要
申请公布号	JPS52107549(A)	申请公布日期	1977.09.09
申请号	JP19760023245	申请日期	1976.03.05
申请人	HITACHI LTD	发明人	SASAKI HIROSHI;CHIBA TOMIO
分类号	H02H3/28;H02H3/26;H02H7/04;H02H7/22	主分类号	H02H3/28
代理机构		代理人
主权项
地址

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