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 Kreibich (dermatologist) Karl Kreibich (dermatologist) Karl Kreibich (20 May 1869 – 30 December 1932) was an Austrian dermatologist born in Prague. In 1894 he obtained his doctorate from the German Medical Faculty at Prague, and performed his postgraduate studies in Vienna. At Vienna he spent six years as an assistant to dermatologist Moritz Kaposi (1837-1902). In 1903 he succeeded Adolf Jarisch (1850–1902) as head of the dermatology clinic at the University of Graz, and later on, succeeded Philipp Josef Pick (1834-1910) as professor of dermatology at the German University in Prague, where in 1923 he was appointed rector. Among his numerous written