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4 gen 1856 anni - Pneumatic post was developed

Descrizione:

Pneumatic post created another way for letters to be delivered quickly between recipients. A pneumatic post utilisez underground pressurized air tubes to carry capsules from on area to another.

Aggiunto al nastro di tempo:

engelsk

Byjørgen
22 ott 2018
1
0
271

Data:

4 gen 1856 anni
Adesso
~ 168 years ago
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