33
/pt/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
10441796
976427
1
Public Timelines
FAQ

31 jul 1790 ano - The first U.S patent is issued, to inventor Samuel Hopkins for a Potash process

Adicionado na linha do tempo:

17 dias atrás
1
0
211

Data:

31 jul 1790 ano
Agora
~ 235 years ago

Geo-tags: