Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Standard Electrica SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Espana SA, Standard Electrica SAfiledCriticalAlcatel Espana SA
Priority to ES0261371ApriorityCriticalpatent/ES261371A2/es
Publication of ES261371A2publicationCriticalpatent/ES261371A2/es
Mejoras en o relativas a centrales de telecomunicación automáticas en las que una conexión entre una línea entrante y una saliente se establece sobre un circuito que incluye un número de diodos semiconductores del tipo conocido como ¿pnpn¿, conectados en serie.
ES0261371A1960-02-291960-02-29Mejoras en o relativas a centrales de telecomunicaciën
ExpiredES261371A2
(es)