Karl Elsener (inventor) his grandson Carl Elsener senior (1922-2013) and his great-grandson Carl Elsener Jr. (born 1958) led the Victorinox company. Karl Elsener (inventor) Karl Elsener (9 October 1860 - 26 December 1918) was a Swiss cutler, inventor and entrepreneur. Karl Elsener completed an apprenticeship as a knife maker in Zug. After some journeyman years he opened a factory in Ibach, Switzerland in 1884 for the manufacture of knives and surgical instruments. He invented the Swiss army knife in 1891 and developed his knife manufacturing company into what has become Victorinox. From 1912 to 1918 Elsener was a member of the cantonal parliament
Karl Deilmann Karl Deilmann Lieutenant Karl Deilmann was a World War I flying ace credited with six aerial victories. Deilmann was born in Dortmund on 22 April 1894. As World War I began, Deilmann joined the "Die Fliegertruppen des deutschen Kaiserreiches" (Imperial German Flying Corps) in September 1914. He was posted to "Feldflieger Abteilung (Field Flier Detachment) 34" in October. He was appointed as a "Gefreiter" in November, and promoted to "Unteroffizier" in January 1915. During 1915, Deilmann served successively in "Feldflieger Abteilung" 52 and FFA 58. He was awarded the Iron Cross Second Class on 17 July 1915. On 14 February