Did Lewis Latimer invent the light bulb? His 1882 patent made its filament for Edison’s rival
Patent US 252,386 covers a cardboard-envelope method for baking carbon filaments, and Latimer assigned it to Hiram Maxim's company before joining Edison's.
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Patent US 252,386 covers a cardboard-envelope method for baking carbon filaments, and Latimer assigned it to Hiram Maxim's company before joining Edison's.
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