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October 22, 1879.

However, Edison did not invent the light bulb, it is a matter of documented record that Swan obtained a UK patent covering a partial vacuum, carbon filament incandescent lamp in 1860.

Thomas Alva Edison patented his invention in 1879, almost 20 years later, the same year that Swan's bulbs were in domestic use in England.

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11y ago
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12y ago

in 1879 he invented the lightbulb

Edison did not invent the lightbulb. He did improve on other's work, developing the first practical incandescent bulb with carbon filament.

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11y ago

Thomas Edison invented the light bulb in 1881

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12y ago

thomas Edison did not invent the light bulb, this is a common misconception

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12y ago

The light bulb Edison focused on the electric light system in 1878

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12y ago

1879

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1879

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1876

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11y ago

1872

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Q: When did thomas edision invented the light bulb?
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