Protective means for polyphase circuits,申请号US19280277244-传众专利搜索

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发明名称	Protective means for polyphase circuits
摘要
申请公布号	US1799932(A)	申请公布日期	1931.04.07
申请号	US19280277244	申请日期	1928.05.12
申请人	CUTLER-HAMMER, INC.	发明人	SIMON ARTHUR
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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