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 Schawerda Karl Schawerda Karl or Carl Schawerda (4 February 1869 in Újezd, Moravia – 11 September 1945 in Vienna) was an Austrian Czech entomologist who specialised in Lepidoptera. Karl Schawerda was a physician of Czech origin, a gynecologist and entomologist mainly devoted to researching moths, but also has significant as an author describing some of the new forms of "Parnassius apollo" Linnaeus, 1758. His father was a railway engineer. After primary and secondary education he studied medicine at the University of Vienna, After graduation in 1894 a gynecologist for four years at the Krankenhaus St. Anna Kinderhospital in Vienna. Later he