what inventions were made in the 1920's?

Answer 1

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Radio/Television Transmission (1920)

Traffic Lights (1920)

Band-Aid (1920)

Hair Dryer (1920)

Lie Detector (1921)

Rocket (1926)

Penicillin (1928)

Frozen Food (1929)

Car with Combustion Engine (around 1920)

Artificial life begins -- the first robot built. 1921

Insulin invented by Sir Frederick Grant Banting. 1922

The first 3-D movie (spectacles with one red and one green lens) is released. 1922

The television or iconoscope (cathode-ray tube) invented by Vladimir Kosma Zworykin. 1923

John Harwood invented the self-winding watch. 1923

The dynamic loudspeaker invented by Rice and Kellogg. 1924

Notebooks with spiral bindings invented. 1924

The mechanical television a precursor to the modern television, invented by John Logie Baird. 1925

Eduard Haas III invents PEZ candy. 1927

JWA Morrison invents the first quartz crystal watch. 1927

Philo Taylor Farnsworth invents a complete electronic TV system. 1927

Technicolor invented. 1927

Erik Rotheim patents an aerosol can. 1927

Warren Marrison developed the first quartz clock. 1927

Philip Drinker invents the iron lung. 1927

Bubble gum invented by Walter E. Diemer. 1928

Jacob Schick patented the electric shaver. 1928

American, Paul Galvin invents the car radio. 1929

Hope this helps.

Source(s): http://www.buzzle.com/articles/inventions-of-the-1... http://inventors.about.com/od/timelines/a/twentiet...

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Answer 2

Inventions 1920

Source(s): https://shorte.im/a02i8

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Answer 3

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RE:

What inventions were made in the 1920's?

Source(s): inventions 1920's: https://knowledge.im/?s=inventions+1920's

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