On December 13, 1904, Hungarian Sándor Just and Croatian Franjo Hanaman were granted a Hungarian patent (No. 34541) for a tungsten filament lamp, that lasted longer and gave a brighter light than the carbon filament. Tungsten filament lamps were first marketed by the Hungarian company Tungsram in 1905, so this type is often called Tungsram-bulbs in many European countries.[31]
In 1930, Hungarian Imre Bródy filled lamps with krypton gas in lieu of argon. He used krypton and/or xenon filling of bulbs. Since the new gas was expensive, he developed a process with his colleagues to obtain krypton from air. Production of krypton filled lamps based on his invention started at Ajka in 1937, in a factory co-designed by Polányi and Hungarian-born physicist Egon Orowan.
The l.bulb as we know it, was invented patented and developed by Hungarian TUNGSRAM
Don't forget we invented the dynamo, the first transformers first watthourmeters and the parallel connection of electrical networks.
[ame="http://en.wikipedia.org/wiki/Transformer"]Transformer - Wikipedia, the free encyclopedia[/ame]
READ ABOUT FASCINATING GANZ COMPANY (the Tungsram was its subsidiary) [ame="http://en.wikipedia.org/wiki/Ganz"]Ganz - Wikipedia, the free encyclopedia[/ame]