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Application filed by Siemens AgfiledCriticalSiemens Ag
Application grantedgrantedCritical
Publication of AT232074BpublicationCriticalpatent/AT232074B/de
AT957061A1961-01-311961-12-18Schaltungsanordnung zur Gebührenerfassung in Fernmeldeanlagen mit mehreren Wertigkeitsgruppen von Teilnehmern
AT232074B
(de)