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In October 1879, Edison "perfected" the light bulb | Signify Company Website
Oct. 21, 1879: Edison Gets the Bright Light Right | WIRED
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Who really invented the light bulb? | BBC Science Focus Magazine
Edison "New Year's Eve" Lamp | National Museum of American History
Edison invents the light bulb...on this day | Share America
In October 1879, Edison "perfected" the light bulb | Signify Company Website
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Edison's light bulb turns 135 | National Museum of American History
Thomas Edison invents the incandescent light bulb. | Light bulb, One light, Incandescent light bulb
When Edison Turned Night into Day - HISTORY
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Dec. 18, 1878: Let There Be Light — Electric Light | WIRED
011. First Light Bulb Demonstration, 1879. - Timeline -- United States - Wolfgram Memorial Library Digital Collections
History of the Light Bulb | Lighting Basics | Bulbs.com
The History of the Light Bulb | Department of Energy
Edison's Lightbulb | The Franklin Institute
Thomas Edison Invents Light Bulb and Myths About Himself | Time
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