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20 jan 1971 ano - Nuevo evento

Descrição:

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 ago 2019
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134

Data:

20 jan 1971 ano
Agora
~ 54 years ago
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