The 1920's was also a time of prosperity for many Americans and there was access to easy credit which made it possible for people to take advantage of the Inventions in the 1920's.
List of Inventions that shaped America for kids
1905 Electric Iron: The first lightweight electric iron was invented by American businessman Earl Richardson in 1905. His design made the iron with more heat in the point - he called his new company Hotpoint which he founded founded in 1911.
1907 Washing Machine: The first electric washing machine sold commercially in the United States was the Thor washing machine, produced by Hurley Electric Laundry Equipment Company in 1907. The Thor washing machine was designed by Hurley engineer Alva J. Fisher, a patent for the new electric washing machine was issued on August 9, 1910. The Thor electric washing machine was mass marketed throughout America in 1908. US electric washing machine sales reached 913,000 units in 1928
1907 Radio Amplifier : The Radio amplifier was invented by Lee DeForest
1907 Vacuum Cleaner : Janitor James Spangler invented his "electric suction-sweeper," the first practical domestic vacuum cleaner in 1907 and sold the rights the following year to a relative, William Hoover.
1908 Model T Automobile: The Model T automobile was created by Henry Ford - refer to Henry Ford and the Model T
1909 Electric Toaster: An employee of General Electric, Frank Shailor, invented the first commercially successful electric toaster in 1909
1912 Electric Blanket : The first practical electric blanket was invented in 1912 by American physician Sidney I. Russell.
1913 The Assembly Line: The Assembly Line as first fully adopted by Henry Ford in 1913 when he installed the first moving assembly line to produce the famous Ford Model T
1913 The Radio: Italian inventor Guglielmo Marconi succeeded in the first radio broadcast in 1900. The US Radio Industry began in 1913 when American engineer, Edwin Armstrong, invented a special circuit that made long-range radio transmission of voice and music practical. 1920's Radio and Advertising
1913 Refrigerator: The first refrigerator for home use were invented by American inventor Fred W. Wolf in 1913. In 1923 Frigidaire introduced the first self-contained unit expanding the market and introducing Americans to domestic refrigerators and freezers for food storage.
1913 Electric Dishwasher: The first electric dishwasher was invented by the Walker brothers in 1913. The first small dishwasher suitable for domestic use was invented by inventor William Howard Livens in 1924.
1917 Guided Missile: American inventor Elmer Sperry built the first aerial torpedo in 1917, which became the first successful guided missile. Refer to Early US Aviation
1920 First US Radio Station: America's first Radio Station was KDKA who were issued with the first ever license on Oct. 27, 1920 - refer to 1920's Radio and Advertising
1921 Band-Aid: The convenient dressing with adhesive tape was invented by Earle Dickson in 1921.
1921 Drive-in restaurant: The first drive-in restaurant was Kirby's Pig Stand, which opened in Dallas, Texas, in 1921
1921 Lie Detector: The lie detector, the modern polygraph system that sensed reactions that helped to determine whether or not a person was lying, was invented by John A. Larson in 1921
1922 The Convertible: American Ben P. Ellerbeck created the first practical retractable hardtop (convertible) prototype in 1922.
1922 Audiometer: Dr. Harvey Fletcher of Brigham Young University invented the first audiometer for evaluating hearing loss in 1922.
1923 Traffic Signal: After seeing two vehicles crash into each other Garret Morgan invented the traffic signal in 1923.
1923 Automatic Watch: The first self winding wrist watch, with a self-winding mechanism, was invented by John Harwood in 1923.
1923 Bulldozer: Americans James Cummings and J. Earl McLeod co-invented and built the first bulldozer in 1923
1923 Instant Camera: The earliest instant camera, with self-developing film, was invented by Samuel Shlafrock in 1923.
1924 Loudspeaker System: Chester Rice and Edward Kellogg, invented the modern loudspeaker system in 1924
1924 Earth inductor compass: The Earth inductor compass, that provided pilots with a more stable and reliable reference instrument, was designed by Morris Titterington in 1924.
1924 Moviola: The Moviola enabled a movie editor to view film while editing was invented in the US by Dutch-American Iwan Serrurier in 1924. Refer to Hollywood in the 1920s
1924 Radio Altimeter: American engineer Lloyd Espenschied invented the radio altimeter, that measured the altitude above the terrain presently beneath an aircraft, in 1924.
1925 Television: Television was invented in 1925 by John Logie Baird. The first experimental Television broadcast in the US. was in 1928.
1926 Garage door opener: In 1926, the electric garage door opener was invented by C.G. Johnson.
1926 Liquid Rocket: American engineer and physicist Robert Goddard invented the first liquid fueled rocket in 1926 that resulted in an important milestone toward spaceflight.
1927 Bread Slicer: The first automatic commercial bread slicing machine was invented by American inventor and engineer Otto Frederick Rohwedder in 1927.
1927 Jukebox: The first selective jukebox was introduced in 1927 by the Automated Musical Instrument Company (AMI).
1927 Electrical Television System: The electrical television system with the dissector tube was invented by Philo Fransworth in 1927.
1927 Garbage Disposal: The electrical garbage disposal unit that shredded food waste into small pieces to be disposed by the plumbing system, was invented in 1927 by John W. Hammes.
1927 Pressure washer: American Frank Ofeldt invented the steam pressure washer to clean buildings, automobiles and concrete surfaces in 1927.
1928 Electric razor: The electric razor was invented by Jacob Schick in 1928. This convenient form of shaving did not require the use of water or shaving cream.
1929 Sunglasses: Sunglasses were invented by Sam Foster in 1929.
1929 Frozen food : American inventor and entrepreneur Clarence Birdseye offered quick-frozen foods to the American public in 1929
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