Arrangement for registering and reading of message units in telephone exchanges

An arrangement for registering and reading message units for calls in a telephone or Telex exchange to allow automatic billing for calls and presenting the bills to the subscribers of the exchanges. Electrochemical integrators are connected so that one of their electrodes is connected to ground pote...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WILCZYNSKI, WIESLAW, SZCZEPANSKI, JERZY W
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TELEPHONIC COMMUNICATION
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