Circuit arrangement for pabx-systems,申请号US19620177354-传众专利搜索

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发明名称	Circuit arrangement for pabx-systems
摘要
申请公布号	US3197567(A)	申请公布日期	1965.07.27
申请号	US19620177354	申请日期	1962.03.05
申请人	INTERNATIONAL STANDARD ELECTRIC CORPORATION	发明人	HEITMANN HERBERT;AUMULLER HANS
分类号	H04M3/38;H04M3/58	主分类号	H04M3/38
代理机构		代理人
主权项
地址

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