In October 1879, Edison "perfected" the light bulb | Signify Company Website
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.jpg?mode=max "Edison works on his lightbulb, Thomas Edison. 1880-1886 | Christie's")
Edison works on his lightbulb, Thomas Edison. 1880-1886 | Christie's
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Dec. 18, 1878: Let There Be Light — Electric Light | WIRED
Edison's Lightbulb | The Franklin Institute
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G.E.'s History of Innovation - The New York Times
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Edison and Swan Electric Light Company - Wikipedia
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Edison Light Bulb | Smithsonian Institution
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History of the Light Bulb | Lighting Basics | Bulbs.com
In October 1879, Edison "perfected" the light bulb | Signify Company Website
Thomas Edison - Wikipedia
Great Influencers in Energy: Thomas Edison may not have invented the light bulb; but where would it (or we) be without him. - Opinion Dynamics
November 4, 1879: Thomas Edison Invents the Electric Light, Files Patent – Constituting America
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Thomas Edison didn't invent the light bulb—but here's what he did do
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