The company marketed the new product. That was never the end of the story. TUNSGTEN DID THE MAGIC This is awkwardly interesting! Edison, himself, knew that tungsten would be good as a filament for incandescent light, but, he had no means of refining the element.
Anyway, tungsten did the magic! Another company, General Electric, had one of their scientists, William David Coolidge, worked on tungsten and made it the best filament for incandescent light.
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