Carl Elsener Sr. Carl Elsener Sr. Carl Elsener Sr. (also known as Charles Elsener, born 6 July 1922 in Ibach, † 1 June 2013 in Schwyz) was a Swiss entrepreneur. Carl Elsener was the grandson of Karl Elsener (1860-1918) and the son of Carl Elsener (1886-1950). Karl Elsener had opened a factory in Ibach for the production of knives and surgical instruments, from which the knife factory Victorinox developed. Carl Elsener led the company initially with his father and his brother Eduard Elsener (b. 1926). After the death of his father in 1950, he took over the management. The Swiss Army Knife is
Karl Peglau Karl Peglau Karl Peglau (May 18, 1927 – November 29, 2009) was a German traffic psychologist who invented the iconic Ampelmännchen traffic symbols used in the former East Germany in 1961. The Ampelmännchen depicts a symbolic person on the red and green pedestrian traffic lights. Peglau wanted to create a traffic light that would be both appealing to children, yet easily accessible and understandable for elderly Germans. He deliberately designed the human figures, known as the Ampelmännchen, to be both creative and "cute". The Ampelmännchen, which is widely beloved in the former German Democratic Republic, is one of the symbols