Carl Elsener Sr. Carl Elsener Sr. Carl Elsener Sr. (also known as Charles Elsener, born 6 July 1922 in Ibach, † 1 June 2013 in Schwyz) was a Swiss entrepreneur. Carl Elsener was the grandson of Karl Elsener (1860-1918) and the son of Carl Elsener (1886-1950). Karl Elsener had opened a factory in Ibach for the production of knives and surgical instruments, from which the knife factory Victorinox developed. Carl Elsener led the company initially with his father and his brother Eduard Elsener (b. 1926). After the death of his father in 1950, he took over the management. The Swiss Army Knife is
Karl Meyer (aviator) Karl Meyer (aviator) Oberflugmeister Karl Meyer was a World War I flying ace credited with eight aerial victories. He was Germany's first naval ace, and one of the few German two-seater aces. Karl Meyer was born on 29 January 1894 in Mulhouse, Alsace-Lorraine, then part of the German Empire. During his World War I flying service, he was attached to the "Marinefliegerkorps" (German Naval Air Service). His unit, "See-Flug Station 1" was stationed at Zeebrugge. Its duties consisted of using seaplanes for a mixed bag of reconnaissance sorties, bombing raids on England, and aerial combat overwater. Meyer flew Friedrichshafen FF.33