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Before Plimpton's invention, all wheels on the bottom of roller skates were inline. [163] 1863 Double-barreled cannon. The double-barreled cannon prototype located in Athens, Georgia. The double-barreled cannon is an American Civil War-era experimental weapon that was intended to fire two cannonballs connected with a chain.
However, other inventors before Bell had worked on the development of the telephone and the invention had several pioneers. [432] 1877: Thomas Edison invents the first working phonograph. [433] 1878: Henry Fleuss is granted a patent for the first practical rebreather. [434] 1878: Lester Allan Pelton invents the Pelton wheel.
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War
A timeline of United States inventions (1890–1945) encompasses the innovative advancements of the United States within a historical context, dating from the Progressive Era to the end of World War II, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.
Timeline of United States inventions (before 1890) Timeline of United States inventions (1890–1945) Timeline of United States inventions (after 1991) 0–9. 2-in-1 ...
1890: The phonograph becomes faster and more convenient due to an electric motor. The electric motor brings on the first juke box with cylinders – even before flat disk records were widely available. Thomas Edison discovers thermionic emission. This effect forms the basis for the vacuum tube and the cathode ray tube.
Timeline of United States inventions (1890–1945) ... Timeline of United States inventions (before 1890) A. Allaire Village; James P. Allaire; Anti-gravity; Assembly ...
The timeline begins at the Bronze Age, as it is difficult to give even estimates for the timing of events prior to this, such as of the discovery of counting, natural numbers and arithmetic. To avoid overlap with timeline of historic inventions , the timeline does not list examples of documentation for manufactured substances and devices unless ...