METHOD AND MEANS FOR PROTECTING AN AC ELECTRIC SYSTEM FROM SHORT CIRCUITS BY A DISTANCE RELAY HAVING QUADRILATERAL CHARACTERISTICS,申请号USD3475655-传众专利搜索

发明名称	METHOD AND MEANS FOR PROTECTING AN AC ELECTRIC SYSTEM FROM SHORT CIRCUITS BY A DISTANCE RELAY HAVING QUADRILATERAL CHARACTERISTICS
摘要
申请公布号	US3475655(A)	申请公布日期	1969.10.28
申请号	USD3475655	申请日期	1967.04.11
申请人	MEIDENSHA:KK.	发明人	SHIRO SUZUKI
分类号	H02H3/38;(IPC1-7):H02H7/26	主分类号	H02H3/38
代理机构		代理人
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