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Date |
Event(s) |
| 1 | 1923 | - 1923: Garrett A. Morgan invents a traffic signal.
- 1923: The television or iconoscope (cathode-ray tube) invented by Vladimir Kosma Zworykin.
- 1923: John Harwood invented the self-winding watch.
- 1923: Clarence Birdseye invents frozen food.
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| 2 | 1924 | - 1924: The dynamic loudspeaker invented by Rice and Kellogg.
- 1924: Notebooks with spiral bindings invented.
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| 3 | 1925 | - 1925: The mechanical television a precursor to the modern television, invented by John Logie Baird.
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| 4 | 1926 | - 1926: Robert H. Goddard invents liquid-fueled rockets.
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1923 - 1926 (3 years)