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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
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Fans with overlapping blades were invented (30 set 1920 ano – 30 set 1930 ano)
Adicionado na linha do tempo:
Heat Control Devices of the Past
By
Eric Wang
24 nov 2017
0
0
537
Data:
30 set 1920 ano
30 set 1930 ano
~ 10 years
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