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.)
AEG AG
Original Assignee
AEG AG
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 AEG AGfiledCriticalAEG AG
Application grantedgrantedCritical
Publication of DE610553CpublicationCriticalpatent/DE610553C/de
Schaltungsanordnung zum gleichzeitigen UEbertragen von niederfrequenten Wechselstrom-Rufsignalen und Gleichstrom-Telegrafiersignalen ueber eine Zweidrahtleitung
Schaltungsanordnung fuer nebengeraeuschfreie Teilnehmerstationen in Fernsprechanlagen mit Waehlerbetrieb, deren Sprechtransformatoren mehrere Wicklungen besitzen