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.)
Compagnie des Telephones Thomson Houston
Original Assignee
Compagnie des Telephones Thomson Houston
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 Compagnie des Telephones Thomson HoustonfiledCriticalCompagnie des Telephones Thomson Houston
Application grantedgrantedCritical
Publication of FR815825ApublicationCriticalpatent/FR815825A/fr
H04Q1/00—Details of selecting apparatus or arrangements
H04Q1/18—Electrical details
H04Q1/30—Signalling arrangements; Manipulation of signalling currents
H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
FR815825D1936-03-311936-03-31Système de signalisation ou de commande par courants alternatifs applicable, notamment, aux systèmes téléphoniques
ExpiredFR815825A
(fr)
Dispositif de priorité ou de franchissement utilisable dans les systèmes téléphoniques, systèmes de signalisation ou de commande ou systèmes similaires