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 FR840431ApublicationCriticalpatent/FR840431A/fr
H04Q1/00—Details of selecting apparatus or arrangements
H04Q1/18—Electrical details
H04Q1/30—Signalling arrangements; Manipulation of signalling currents
H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of DC pulses
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
FR840431D1937-07-171938-07-07Dispositif de transmission d'impulsions de courant dans les installations de transmission à distance
ExpiredFR840431A
(fr)