Arcing frequency changing system,申请号US19320617400-传众专利搜索

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发明名称	Arcing frequency changing system
摘要
申请公布号	US1980461(A)	申请公布日期	1934.11.13
申请号	US19320617400	申请日期	1932.06.15
申请人	AKTIENGESELLSCHAFT BROWN BOVERI & COMPAGNIE	发明人	WIDMER STEFAN
分类号	H02M5/00	主分类号	H02M5/00
代理机构		代理人
主权项
地址

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