Oct. 9, 1962: First Visible LED Is Demonstrated | This Day In Tech | Wired.com

Andre Kesteloot andre.kesteloot at verizon.net
Tue Oct 9 09:08:48 CDT 2012


http://www.wired.com/thisdayintech/2012/10/oct-9-1962-the-first-visible-led-is-demonstrated/





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