Edison's light bulb turns 135 | National Museum of American History
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Great Influencers in Energy: Thomas Edison may not have invented the light bulb; but where would it (or we) be without him. - Opinion Dynamics
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Edison works on his lightbulb, Thomas Edison. 1880-1886 | Christie's
The advent of the light bulb – Let there be light! - Stanpro
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Bulb Still Burning After 100-Plus Years as GE Brings Business Back to US - ABC News
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In October 1879, Edison "perfected" the light bulb | Signify Company Website
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Vintage Edison Round Squirrel Cage Tungsten Filament Bulb
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