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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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Filing date
Publication date
Application filed by Western Electric Co IncfiledCriticalWestern Electric Co Inc
Priority to ES0269814ApriorityCriticalpatent/ES269814A1/en
Publication of ES269814A1publicationCriticalpatent/ES269814A1/en
Sub-Exchange Stations And Push- Button Telephones
(AREA)
Abstract
Telephone line concentrator system, which comprises the arrangement of a central station, a first series of branches that depart from the central station, several substations distant from the central station and separated from each other, and several individual concentrator assemblies of the stations and physically next to them, equipped with means to connect the substations to the first series of branches, and means to connect them to the second series of branches, under the direction of the central station. (Machine-translation by Google Translate, not legally binding)
ES0269814A1961-07-201961-07-20Concentrator system of telephone lines (Machine-translation by Google Translate, not legally binding)
ExpiredES269814A1
(en)
Improvements in the installations for the communication of viva voz, constituted of a main station and several derivative stations (Machine-translation by Google Translate, not legally binding)