Improvements in or relating to alternating current directional relays,申请号GB19290017381-传众专利搜索

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发明名称	Improvements in or relating to alternating current directional relays
摘要
申请公布号	GB331352(A)	申请公布日期	1930.07.03
申请号	GB19290017381	申请日期	1929.06.06
申请人	THOMAS WYLIE ROSS;ASSOCIATED ELECTRICAL INDUSTRIES LIMITED	发明人
分类号	H02H3/42	主分类号	H02H3/42
代理机构		代理人
主权项
地址

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