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sobre el origen y la evolución del teléfono.
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è stato aggiornato:
17 feb 2021
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made mendoza
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Eventi
Operadores Telefónicos
CENTRALITA
Patente del Telefono
BELL SYSTEM "Bell Telephone Company"
PRIMEROS TELÉFONOS 1896
CONMUTACIÓN ELECTROMECÁNICA
cable coaxial
DISCO Y BOTONES
TRANSMISOR DE RADIO
PRIMER TELÉFONO MÓVIL "DYNATAC 8000 x"
LENGUAJE SUBVOCAL
TELÉFONO DE COCHE
SISTEMA CELULAR
EMERGENCIAS 911
CONMUTADOR DIGITAL
CELULARES DESECHADOS
INDTRODUCCIÓN
INSTALACIONES DE ATT&T
EVOLUCIÓN DEL TELÉFONO
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