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Filing date
Publication date
Application filed by Siemens AgfiledCriticalSiemens Ag
Application grantedgrantedCritical
Publication of AT322638BpublicationCriticalpatent/AT322638B/de
H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Meter Arrangements
(AREA)
AT78972A1971-02-251972-02-01Schaltungsanordnung für fernmeldevermittlungsanlagen, insbesondere fernsprechvermittlungsanlagen, mit gebührenzahlung
AT322638B
(de)