Circuit de commutation,申请号BE19580573322-传众专利搜索

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发明名称	Circuit de commutation
摘要
申请公布号	BE573322(A1)	申请公布日期	1959.03.16
申请号	BE19580573322	申请日期	1958.11.26
申请人	WESTERN ELECTRIC COMPANY INCORPORATED	发明人	DENNIS BRYAN JAMES;JOHN DANIEL JOHANNESEN
分类号	H04J3/20;H04Q11/04;(IPC1-7):H04M	主分类号	H04J3/20
代理机构		代理人
主权项
地址

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