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  2. Waterloo Gasoline Engine Company - Wikipedia

    en.wikipedia.org/wiki/Waterloo_Gasoline_Engine...

    The Waterloo Gasoline Engine Company was the first company to manufacture and sell gasoline powered farm tractors. Based in Waterloo, Iowa , the company was created by John Froelich and a group of Iowa businessmen in 1893, and was originally named the Waterloo Gasoline Traction Engine Company .

  3. John Froelich - Wikipedia

    en.wikipedia.org/wiki/John_Froelich

    John Froelich (November 24, 1849 – May 24, 1933) was an American inventor and entrepreneur, who invented the first stable gasoline-powered tractor with forward and reverse gears. [ 1 ] [ 2 ] He received several patents relating to tractors and internal combustion engines.

  4. Thomas Midgley Jr. - Wikipedia

    en.wikipedia.org/wiki/Thomas_Midgley_Jr.

    Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer.He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment.

  5. Who invented the modern tractor, key to Iowa agriculture? - AOL

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  6. Holt Manufacturing Company - Wikipedia

    en.wikipedia.org/wiki/Holt_Manufacturing_Company

    The tractor is stacked high with supplies, and a number of uniformed soldiers are walking alongside. A Holt 60-horsepower, four-cylinder valve-in-head gasoline Caterpillar (s/n 524) in 1912. The tractor was restored in the late 1960s and is the oldest surviving East Peoria-built tractor known to exist. [42]

  7. Charles Henry Parr - Wikipedia

    en.wikipedia.org/wiki/Charles_Henry_Parr

    In 1902, they developed a gasoline engine for tractors and one year later invented the first known kerosene-run engine, which needed just 50% of the fuel that ran the gasoline engine. [4] Also 1903, they built the country's first internal combustion engine. [3] For a time, Hart-Parr tractors were a leading type, sold in the US and other ...

  8. Charles Walter Hart - Wikipedia

    en.wikipedia.org/wiki/Charles_Walter_Hart

    Charles Walter Hart (July 6, 1872 — March 14, 1937) was an American mechanical engineer, inventor, and businessman. Together with Charles Henry Parr, he founded a company that produced a commercially successful line of gasoline-powered tractors.

  9. Avery Company - Wikipedia

    en.wikipedia.org/wiki/Avery_Company

    An Avery tractor pulling three sod cutters on a farm near Larned, Kansas, around 1916. The Avery company made many traction engines, such as the 1907 steam tractor model. At that time steam was the only form of power and the tractor resembled a miniature locomotive. In 1909, Avery began manufacturing gasoline tractors. [6]