Carl Edvard Johansson (15 March 1864 to 30 September 1943) was a Swedish inventor and scientist, born at Frötuna bruk in Fellingsbro, Örebro County. He invented the gauge block set, also known as Jo Blocks or Johansson gauge blocks, and was granted his first Swedish patent for it, number 17017 titled Gauge Block Sets for Precision Measurement, on 2 May 1901. He formed the Swedish company CE Johansson AB in Eskilstuna in 1911, and the first set sold in America went to Henry M. Leland at Cadillac around 1908. In 1923 he began working for Henry Ford at the Ford Motor Company in Dearborn, Michigan, and after his death in 1943 he was honored with the large gold medal of the Royal Swedish Academy of Engineering Sciences.
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Carl Edvard Johansson
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was a Swedish inventor and scientist
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1. Grace's Guide to British Industrial History: Carl Edvard Johansson
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Carl Edvard Johansson (1864-1943) of C. E. Johansson
Carl Edvard Johansson
Invented: Gauge Block, Lead
Johansson invented the gauge block set
In Field: Mechanical Engineering, Lead
Johansson invented the gauge block set
In Group: Clockmakers and Precision Instrument Makers, Lead
Gauge Block Sets for Precision Measurement
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