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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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Automatic dialing system (1 jan 1891 ano – 31 dez 1891 ano)

Descrição:

First automatic dialing system invented by a Kansas City undertaker. He believed that crooked operators were sending his potential customers elsewhere. It was his aim to get rid of the operators altogether.

Adicionado na linha do tempo:

click for descriptions/PHONE TIMLINE

ByJasun Foley
23 out 2018
0
0
420

Data:

1 jan 1891 ano
31 dez 1891 ano
~ 12 months
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