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Maine Memory Network

Distribution: Light Bulbs

Metalized filament bulb, ca. 1904

Metalized filament bulb, ca. 1904

Item 74868 info
Maine Historical Society

With increased competition and the search for more efficient lamps, Willis Whitney, an employee of General Electric, found that carbonized cellulose filaments prepared at very high temperatures took on metallic properties.

These lamps could then be operated at higher temperatures, giving more light – 4.25 lumens – per watt.


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