Rural telephone service, dial switching for teletypewriter systems and miscellaneous items
1945
11 S.
Digital preservation by Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
Book
English
Analysis of Swiss Etk Teletypewriter
NTIS | 1952
|KONFIGURIERBARE FAHRZEUGINTERNE TELETYPEWRITER (TTY) FUNKTIONALITÄT
European Patent Office | 2020
|Keyboard-Transmitter, Teletypewriter TT-568/AGC-6
NTIS | 1968
|Miscellaneous facilities at automatic and manual telephone exchanges
Engineering Index Backfile | 1932
|