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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 ene 1930 año - Charles Lauritsen develops high-voltage x‑ray machine for radiation therapy
Añadido al timeline:
Radiation Timeline
By
Joshua Ha
8 jun 2018
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0
518
fecha:
1 ene 1930 año
Ahora mismo
~ 95 years ago
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