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This category has the following 3 subcategories, out of 7 total.
217:
The following 63 pages are in this category, out of 112 total.
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219:This list may not reflect recent changes
247:Neutral direct-current telegraph system
645:
526:Teletype writer 7 stylus 35 dot matrix
133:
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132:
14:
679:
495:Telegraphy in the United States
264:Oficina de Telégrafo y Teléfono
274:Order of Railroad Telegraphers
214:Pages in category "Telegraphy"
1:
561:U.S. Military Telegraph Corps
549:Transatlantic telegraph cable
399:Francis Ormand Jonathan Smith
663:Second Industrial Revolution
607:Wireless Telegraphy Act 2006
328:Polarential telegraph system
212:
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658:20th century in technology
653:19th century in technology
567:Underwater telegraph cable
16:The main article for this
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338:Prussian semaphore system
612:Wireless Telegraphy Acts
348:Push-to-type operation
259:O'Reilly v. Morse
414:Joseph Barker Stearns
404:Spark-gap transmitter
510:Teletype Corporation
457:Telegraph insulators
360:Quadruplex telegraph
602:Wireless telegraphy
490:Telegraphic address
389:Schilling telegraph
279:Henry O'Reilly
668:Telecommunications
436:Telegram messenger
333:Printing telegraph
311:Walter P. Phillips
597:Wheatstone system
520:Teletype Model 33
515:Teletype Model 28
480:Telegraph sounder
468:Telegraph Plateau
394:Optical telegraph
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629:John B. Yale
431:Telautograph
377:Relay league
343:Punched tape
296:Pantelegraph
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585:Vidiprinter
544:Ticker tape
500:Teleprinter
322:PKT printer
301:John Pender
197:(1 C, 41 P)
647:Categories
156:Morse code
23:Telegraphy
580:Vibratese
176:Telegrams
32:Contents
539:Ten-code
533:Telex II
284:Othernet
18:category
505:Teletex
237:NAVTEX
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