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5 ore 2 gen 1928 anni - Thomas Midgley, Jr. invents coolant chemicals for air conditioners and refrigerators
Aggiunto al nastro di tempo:
20th Century
By
Rafelle Marie Timog Allego
10 feb 2018
0
0
658
Data:
5 ore 2 gen 1928 anni
Adesso
~ 96 years ago
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