1844 (1 Dez 1844 Jahr – 1 Apr 1845 Jahr)
Beschreibung:
Charles Goodyear obtained a patent to develop a method to treat rubber to make it stronger. This was a continuity because inventors were already working on a way to advance the economy.
Zugefügt zum Band der Zeit:
Datum:
1 Dez 1844 Jahr
1 Apr 1845 Jahr
~ 4 months