Comment Comment by vkreso Also in 1904, Franjo Hanaman and Alexander Just developed and patented the incandescent tungsten-filament lightbulbhttps://en.m.wikipedia.org/wiki/Franjo_Hanaman https://en.m.wikipedia.org/wiki/Alexander_Just parent vkreso 2 years ago
https://en.m.wikipedia.org/wiki/Franjo_Hanaman https://en.m.wikipedia.org/wiki/Alexander_Just