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27 Dez 1919 Jahr - La cracion del primer magnetron
Beschreibung:
fue inventado por Albert Hull en 1920, pero no era capaz para las altas frecuencias y se utilizó poco
Zugefügt zum Band der Zeit:
New timeline
By
ivan salviulo
30 Mär 2022
2
0
365
Datum:
27 Dez 1919 Jahr
Jetzt
~ 105 years ago
Abbildungen:
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