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Teleprinter
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=== Patents === * {{cite patent |country=US |status=Patent |number=1665594 |title=Telegraph printer (Type 12 Teletype) |fdate=June 1924 |gdate=April 1928}} * {{cite patent |country=US |status=Patent |number=1745633 |title=Telegraph receiver (Type 14 Teletype) |fdate=December 1924 |gdate=February 1930}} * {{cite patent |country=US |status=Patent |number=1904164 |title=Signalling system and apparatus therefor (Type 15 Teletype) |fdate=July 1930 |gdate=April 1933}} * {{cite patent |country=US |status=Patent |number=3507997 |title=Frequency-Shift Teletypewriter |fdate=August 1966 |gdate=April 1970}} {{Telecommunications}} {{Authority control}} [[Category:History of telecommunications]] [[Category:Impact printing]] [[Category:Printing technology]] [[Category:Telegraphy]] [[Category:Typewriters]]
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