Velcro
De Mestral gave the name "Velcro", a portmanteau of the French words "velour" ("velvet") and "crochet" ("hook"), to his invention as well as his company, which continues to manufacture and market the fastening system.
Georg Kopprasch
Active in the Berlin horn playing scene in the early 1800s, Kopprasch was acquainted with the inventor of the valved horn, Heinrich Stölzel. Because horns could not play chromatically prior to Stölzel's invention of valves, no chromatic etudes existed for the horn and it is likely Kopprasch composed his now seminal works to fill that need.