17
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en
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
67089
4599
2

dec 26, 1905 - American entrepreneur lee de forest creating the audion.

Added to timeline:

28 Sep 2017
0
0
207
film, broadcast,video ,etc

Date:

dec 26, 1905
Now
~ 112 years ago
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