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== Lebensstationen ==
<timeline>
ImageSize = width:700 height:1400
PlotArea = width: 578 height:1250 left:70 bottom:55
DateFormat = yyyy
Period = from:1800 till:1913
TimeAxis = orientation:vertical order:reverse
ScaleMajor = unit:year increment:10 start:1800
ScaleMinor = unit:year increment:1 start:1800
PlotData=
mark:(line,black)
shift:(15,-5)
at:1801 text:"[[Sir Humphry Davy]]—Platinum filament"
at:1809 text:"[[Sir Humphry Davy]]—Carbon arc lamp"
at:1835 text:"[[James Bowman Lindsay]]—Incandescent light demonstration"
at:1840 text:"[[Warren De la Rue]]—Vacuum tube enclosure"
at:1841 text:"[[Frederick de Moleyns]]—Powdered charcoal filament"
at:1873 text:"[[Joseph Wilson Swan]]—Carbon fibre filament"
at:1875 text:"[[[[Henry Woodward|Woodward]] & [[Mathew Evans]]]]—Gas filled ""globe""
at:1880 text:"[[Thomas Edison]]—Long lasting filament"
at:1881 text:"[[Hiram Maxim]]—Improved carbon filament manufacturing process (U.S. Patent No. 405,239)"
at:1882 text:"[[Lewis Howard Latimer]]—Improved carbon filament manufacturing process"
at:1883 text:"George Bowron and Walter Hibbert—Improved carbon filament manufacturing process (U.S. Patent No. 304,901)"
at:1885 text:"Louis Heinze—Helical-shaped filament (U.S. Patent No. 319,580)"
at:1886 text:"[[Thomas Edison]]—Improved carbon filament manufacturing process (U.S. Patent No. 490,954)"
at:1889 text:"Edward P. Thompson—Improved carbon filament manufacturing process (U.S. Patent No. 401,606)"
at:1892 text:"[[Thomas Edison]]—Improved carbon filament manufacturing process"
at:1904 text:"[[Franjo Hanaman|Hanaman]] & [[Aleksandar Just|Just]]—1st patent for tungsten filament"
at:1910 text:"[[William David Coolidge]]—Drawn tungsten filament"
at:1913 text:"[[Irving Langmuir]]—Gas filled lamp, coiled tungsten filament"
</timeline><noinclude>
[[Category:Graphical timeline templates]]
</noinclude>
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