Tko je registrirao prvi patent za tehničku olovku?
Točan odgovor: Sampson možda i John Isaac Hawkins
![Čibarić](https://p.cdn.quizzclub.com/ql/2021-04-13/20f08a7b3ac4413eabb8b727990fd66b.jpg)
Čibarić
prvu tehnicku olovku izmislio je Slavoljub Penkala
![Player #49962784](https://cdn.best-quiz.com/avatars/0.png)
Player #49962784
Player #49968012, pa pogledaj izvor
![Player #43134234](https://cdn.best-quiz.com/avatars/0.png)
Player #43134234
nije tocno, prvu tehnicku olovku izumio je Slavoljub Penkala.
![Player #49968012](https://cdn.best-quiz.com/avatars/0.png)
Player #49968012
možda? 🤣