1 janv. 1771 - First Practical Diving Helmet
Description:
French Scientist Sieur Freminet invents a helmet-hose apparatus, in which air is pumped from the egg-shaped reservoir. This is important because this marks when ocean diving equipment is starting to be madeAjouté au bande de temps:
Date:
1 janv. 1771
Maintenaint
~ Il y a 253 ans
