Leon Trotsky | León | Kings of Leon | Nuevo León | Leon Russell | León, Guanajuato | Jean-Léon Gérôme | Kingdom of León | Leon | Saint-Pol-de-Léon | Leon René | Leon Lai | Léon Blum | Leon Redbone | León, Nicaragua | Gaumont British | Angelu de Leon | Province of León | Leon County, Florida | Leon Battista Alberti | León, Spain | Leon Panetta | Kings Of Leon | Juan Ponce de León | André Leon Talley | Oscar D'León | Leon Ware | Leon Morris | León Gieco | Leon Dewan |
The Chronophone is an apparatus patented by Léon Gaumont in 1902 to synchronise the Cinématographe (Chrono-Bioscope) with a disc Phonograph (Cyclophone) using a "Conductor" or "Switchboard".