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jan 20, 1971 - Nuevo evento

Description:

Como resultado del desarrollo de nuevos materiales semiconductores, los LED se producen en nuevos colores: verde, naranja y amarillo. El rendimiento y la efectividad del LED continúa mejorando.

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ByBastian Quillay Tapia
19 Aug 2019
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Date:

jan 20, 1971
Now
~ 54 years ago
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