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6.000 empresas de telefonia (feb 13, 1904 – feb 13, 1904)

Description:

6.000 empresas de telefonia independentes com mais de 3.317 milhões de aparelhos instalados.

Added to timeline:

Technology TimeLine By Maurilio Benevento

ByMaurilio Benevento
6 Jan 2022

Date:

feb 13, 1904
feb 13, 1904
~ 0 min
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