franjo hanaman
Franjo Hanaman – Inventor Of The World’s 1st Commercially Viable Light Bulb
Total Croatia News
February the 26th, 2024 – Croatian inventor Franjo Hanaman became famous worldwide for inventing the world’s first applied electric light ...
Franjo Hanaman, Inventor of World’s First Commercially Viable Light Bulb
Total Croatia News
The Croatian inventor became famous worldwide for inventing the world’s first applied electric light-bulb with a metal filament in 1904