An ice resurfacer is a vehicle or hand-pushed device used to clean and smooth the surface of an ice sheet, usually in an ice rink. The two major manufacturers are Resurfice Corporation, which sells Olympia-brand machines, and Frank J. Zamboni & Company. The first ice resurfacer was developed by Frank Zamboni in 1949 in the city of Paramount, California. Zamboni /zæmˈboʊni/ is an internationally registered trademark.