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dec 30, 1955 - Primer marcapasos
Description:
En 1956, mediante la investigación con perros, Hopps inventó el primer dispositivo marcapasos, que era demasiado grande como para utilizarlo internamente.
Added to timeline:
Gneraciones tecnologicas(camila arauz)
By
Kami _sama
4 Oct 2018
0
0
492
Date:
dec 30, 1955
Now
~ 69 years ago
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