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.)
H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
H04B1/02—Transmitters
H04B1/03—Constructional details, e.g. casings, housings
Schaltungsanordnung fuer Telegraphenanlagen mit Doppelstrombetrieb, bei welcher einesendende Station durch AEnderung des Stromzustandes der Verbindungsleitung von Senden auf Empfang umgeschaltet werden kann