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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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31 dic 1949 año - creacion de transistores en laboratorios bell dando manejo de resistencias
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linea de tiempo sociedad y tecnologia
By
victor mogollon
12 feb 2020
0
0
205
fecha:
31 dic 1949 año
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~ 75 years ago
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