File:Edison and Shelby Light Bulbs (1899) (ADVERT 289).jpeg - Wikimedia Commons
Light Bulb Manufacturing - Engineering and Technology History Wiki
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PropertyProf Blog
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Untitled Document
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In October 1879, Edison "perfected" the light bulb | Signify Company Website
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The History of Incandescent Light Bulbs – BulbAmerica
In October 1879, Edison "perfected" the light bulb | Signify Company Website
Bulb Still Burning After 100-Plus Years as GE Brings Business Back to US - ABC News
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:max_bytes(150000):strip_icc()/GettyImages-538349053-56b008615f9b58b7d01f9c66.jpg "Who Invented the Lightbulb?")