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[[File:Gluehlampe 01 KMJ.png|thumb|upright|A 230-volt incandescent light bulb with a medium-sized [[Edison screw|E27]] (Edison 27 millimeter) [[Gend ...ron microscope|SEM]] image of the [[tungsten]] filament of an incandescent light bulb.]] ...

...mera]], and the long-lasting, practical electric [[Incandescent light bulb|light bulb]], had a widespread impact on the modern [[industrial society|industri ...n]] turned out 50,000 lamps. According to Edison, Hammer was "a pioneer of incandescent electric lighting".<ref>{{cite book |title=Thomas Edison: Life of an Electr ...