17 juin 1767 - Invention of caterpillar tracks
Description:
Inuan inventor and engineer Erik Ägeson created the first caterpillar tracks, what he called 'Allrganganí vagíar' (everlasting roads). It took him 26 years to improve the design and get enough funding to get a patent, although it went into production in 1788.Ajouté au bande de temps:
Date:
17 juin 1767
Maintenaint
~ Il y a 257 ans
