Matthäus Hipp
Matthäus Hipp also spelled Matthias or Mathias (Blaubeuren, 25 October 1813 – 3 May 1893 in Fluntern) was a German clockmaker and inventor who lived from 1852 on in Switzerland. His most important, lastingly significant inventions were electrical looms, traffic signals, pendulum clocks, and the Hipp chronoscope.