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jan 1, 1892 - pierwsza automatyczna centrala telefoniczna
Description:
W La Porte w stanie Indiana uruchomiono pierwszą automatyczną centralę telefoniczną.
Added to timeline:
oś czasu
By
Zuzanna Lange
3 Oct 2018
0
0
409
Date:
jan 1, 1892
Now
~ 134 years ago
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