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
Carl Elsener Sr. considered to be one of his works. Under the leadership of Carl Elsener Sr., the Messerfabrik became the largest company in the canton of Schwyz. In 1938, Elsener joined the company, which at the time had employed 80 people. At the time of his death, there was well over a thousand employees. Elsener is described as a boss who was able to operate almost all the machines himself, who was traveling in the "Lismerli" or in the blue work coat and who cycled to the factory. He never owned a car. A few years before his death, he felt healthy