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1 juill. 1923 - Garrett A. Morgan invents a traffic signal. The television or iconoscope (cathode-ray tube) invented by Vladimir Kosma Zworykin. John Harwood invented the self-windingwatch in 1923. Clarence Birdseye invents frozen food.

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WH timeline pt 2

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27 sept. 2021
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Date:

1 juill. 1923
Maintenaint
~ Il y a 102 ans
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