Tungsram

From Wikipedia, the free encyclopedia

Tungsram is a Hungarian manufacturer of light bulbs and vacuum tubes since 1896, now a subsidiary of General Electric and used as a brand name only.

This company announced the patent for electric bulbs with Wolfram filament in 1903. Later in 1934, they also announced a patent for Imre Bródy's electric bulb filled with krypton. Both provide longer lifetime for electric bulbs.

The name Tungsram comes from Tungsten and Wolfram the names of the metal used for making filaments.

[edit] External links

• Tungsram
• Full history of Tungsram in english language PDF

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Categories: Lighting brands | General Electric subsidiaries | Science and technology in Hungary | Manufacturing company stubs

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• This page was last modified 17:30, 12 November 2006 by Wikipedia user Dr.frog. Based on work by Wikipedia user(s) Rayc, Korovioff, TPO-bot, Whobot, Saga City, Adam78 and Grm wnr and Anonymous user(s) of Wikipedia.
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