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April 1, 2024
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17 dic 1964 anni - First phone for the deaf invented

Descrizione:

Robert Weitbrecht , who is deaf, invents teletypewriter which enables deaf people to use the phone lines to call each other and type out there conversations.

Aggiunto al nastro di tempo:

27 set 2017
0
0
421
deaf history timeline

Data:

17 dic 1964 anni
Adesso
~ 59 years ago
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