"It was invented by Russian scientist and engineer Aleksandr Lodygin. In 1872 Lodygin submitted application of the patent for his lamp" https://russiapedia.rt.

"It was invented by Russian scientist and engineer Aleksandr Lodygin. In 1872 Lodygin submitted application of the patent for his lamp" https://russiapedia.rt.com/of-russian-origin/the-ilyich-lamp/ https://russiapedia.rt.com/of-russian-origin/the-ilyich-lamp...