These systems are private teleprinter exchanges for large organizations; large number of parties are served by relatively small number of teleprinter receivers and transmitters installed at exchange; reasons why Norwegian State Railways chose such system and outline of operation.
Teleprinter reductor system for Norwegian State Railways
Eine Fernschreib-Reduktoranlage im Dienst der Norwegischen Staatsbahnen
Siemens Zeitschrift ; 41 , n 1
1967
3 pages
Article (Journal)
German
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Electrification of Norwegian state railways
Engineering Index Backfile | 1950
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Electrification of Norwegian railways
Engineering Index Backfile | 1929
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