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4 janv. 1856 - Pneumatic post was developed

Description:

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.

Ajouté au bande de temps:

engelsk

Byjørgen
22 oct. 2018
1
0
360

Date:

4 janv. 1856
Maintenaint
~ Il y a 169 ans
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