Electronic switching system and line circuit therefor,申请号US19610085741-传众专利搜索

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发明名称	Electronic switching system and line circuit therefor
摘要
申请公布号	US3136863(A)	申请公布日期	1964.06.09
申请号	US19610085741	申请日期	1961.01.30
申请人	AUTOMATIC ELECTRIC LABORATORIES, INC.	发明人	MELVIN DONALD K.
分类号	H04M7/10;H04Q3/52	主分类号	H04M7/10
代理机构		代理人
主权项
地址

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