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November 4, 1879: Thomas Edison Invents the Electric Light, Files Patent - Constituting America
Let There Be Light - The Making of America: Thomas Edison - TIME
Thomas Edison Light Bulb - Ohio Memory Collection -
These Edison era light bulbs just fetched $30K at U.S. auction | CBC Radio
Edison Perfects Light Bulb - This Day in Tech History
Thomas Edison's Light Bulb: A major engineering advancement made during this time period, allowing for the use of elec… | Thomas edison light bulb, Bulb, Light bulb
Thomas Edison Lights the Way – NTC's Professional Educators Network
Thomas Edison Incandescent Light Bulb | On this day in 1878, Thomas Edison began development on the first practical incandescent light bulb. #InnovationInHistory | By Stanford Research Park | Facebook
Thomas Edison didn't invent the light bulb—but here's what he did do
Thomas Edison | Biography, Early Life, Inventions, & Facts | Britannica
Did Thomas Edison Really Invent the Lightbulb? | Britannica
History of the Light Bulb | Lighting Basics | Bulbs.com
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