Automatic switching system,申请号US19280328980-传众专利搜索

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发明名称	Automatic switching system
摘要
申请公布号	US1786326(A)	申请公布日期	1930.12.23
申请号	US19280328980	申请日期	1928.12.28
申请人	GENERAL ELECTRIC COMPANY	发明人	ANDERSON ARVID E.;KING FREDERIC D.
分类号	H02H3/033	主分类号	H02H3/033
代理机构		代理人
主权项
地址

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