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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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24 juin 1897 - Karl Ferdinand Braun construye el primer tubo catodico
Ajouté au bande de temps:
jorge
By
Jorge González Cordero
17 nov. 2017
0
0
342
Date:
24 juin 1897
Maintenaint
~ Il y a 128 ans
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