Protective relay for polyphase electrical apparatus,申请号US19610085308-传众专利搜索

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发明名称	Protective relay for polyphase electrical apparatus
摘要
申请公布号	US3202877(A)	申请公布日期	1965.08.24
申请号	US19610085308	申请日期	1961.01.27
申请人	PERRAULT ROY E	发明人	PERRAULT ROY E.
分类号	H02H3/34	主分类号	H02H3/34
代理机构		代理人
主权项
地址

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