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 Zangemeister Karl Zangemeister Karl Friedrich Wilhelm Zangemeister (28 November 1837, in Hallungen, Saxe-Coburg and Gotha – 8 June 1902, in Heidelberg) was a German librarian and philologist. He studied classical philology at the universities of Berlin and Bonn, receiving his doctorate in 1862 with the thesis "De Horatii vocibus singularibus dissertatio". Afterwards, he worked on the "Corpus Inscriptionum Latinarum" project in Italy, and from 1868 to 1873 was a librarian at the Ducal Library in Gotha. In 1873 he relocated to the University of Heidelberg as senior librarian, being named a professor of classical philology in 1875. From 1894 to 1902