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.)
Tenovis GmbH and Co KG
Original Assignee
Telefonbau und Normalzeit GmbH
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 Telefonbau und Normalzeit GmbHfiledCriticalTelefonbau und Normalzeit GmbH
Application grantedgrantedCritical
Publication of FR51130EpublicationCriticalpatent/FR51130E/fr
H04Q3/0016—Arrangements providing connection between exchanges
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
FR51130D1939-07-111939-07-11Installation téléphonique à plusieurs postes centraux et à lignes de jonction àdeux conducteurs bloquées
ExpiredFR51130E
(fr)