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• Incandescent light bulb
  In 1802, [[Humphry Davy]] used what he described as "''a [[Battery (electricity)|battery]] of immen ...bustible, created no smoke or smell and was less expensive to produce than Davy's platinum-dependent bulb.<ref name="Challoner" /> However, having perfecte
  104 KB (15,285 words) - 16:44, 16 December 2018
• Thomas Edison
  ...nd commercially impractical incandescent electric lamps included [[Humphry Davy]], [[James Bowman Lindsay]], [[Moses G. Farmer]],<ref>{{cite web|url=http:/
  105 KB (15,290 words) - 17:19, 16 December 2018