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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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2 gen 1950 anni - John Hopps invented the first cardiac pacemaker
Aggiunto al nastro di tempo:
Waushara County Timeline Project
By
Christian Avalos
16 nov 2018
0
0
537
Data:
2 gen 1950 anni
Adesso
~ 75 years ago
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