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This category has the following 4 subcategories, out of 4 total.
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Defunct telecommunications companies of the United States
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History of science and technology in the United States
457:List of White Alice Communications System sites
177:Citizens Telecommunications Company of Nebraska
94:Telecommunications museums in the United States
316:New York Telephone Company building explosion
270:History of the telephone in the United States
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37:History of broadcasting in the United States
115:This list may not reflect recent changes
488:Telecommunications in the United States
243:First transcontinental telephone call
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275:Hush-A-Phone Corp. v. United States
406:Transatlantic communications cable
350:Polebridge to Numa Ridge Phoneline
238:First long-distance telephone line
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452:White Alice Communications System
311:Network Equipment-Building System
411:First transcontinental telegraph
396:Telegraphy in the United States
379:STARCOM (communications system)
150:Regional Bell Operating Company
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493:History of telecommunications
287:Independent telephone company
401:Terrestrial Wideband Network
133:Alaska Communications System
440:Volta Laboratory and Bureau
199:Defense Simulation Internet
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367:Russian–American Telegraph
328:Overland Telegraph Company
182:Communications Act of 1934
160:Breakup of the Bell System
340:Pacific Telegraph Company
138:Automatic Digital Network
233:Federal Radio Commission
248:Frontier West Virginia
216:Electrical telegraph
265:History of AT&T
362:Radio Act of 1927
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65:(4 C, 95 P)
482:Categories
172:Carterfone
41:(2 C, 5 P)
345:Plan 55-A
155:Bell Labs
469:Zapmail
204:Dialcom
416:Tymnet
299:MILNET
98:(33 P)
85:(50 P)
391:TAT-8
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357:R
335:P
323:O
306:N
294:M
282:I
255:H
223:F
211:E
189:D
167:C
145:B
123:A
74:T
50:D
26:B
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