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Woodward and Evans Light Bulb

In 1874, Canadians Henry Woodward and Mathew Evans patented a design for an incandescent light bulb. Their invention preceded that of American Thomas Edison by several years. In fact, the second patent (issued in 1876 in the United States) was among those that Edison bought as he refined the technology to create a longer-lasting bulb. Woodward and Evans’s early work on the light bulb in Toronto has gone largely unrecognized. It was nevertheless an important development in the invention of electric lighting.

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