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
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
Priority claimed from GB24261/53Aexternal-prioritypatent/GB788592A/en
Application filed by Alcatel Espana SAfiledCriticalAlcatel Espana SA
Publication of ES217074A1publicationCriticalpatent/ES217074A1/es
Mejoras en o relativas a sistemas de telecomunicaciones automáticos, caracterizadas por un conmutador selector que comprende un equipo de prueba de control de selección adaptado para funcionar através del canal de comunicación mismo.
ES0217074A1953-09-021954-08-21Mejoras en o relativas a sistemas de telecomunicacion automnaticos
ExpiredES217074A1
(es)