Sten Karl Leopold "Sten-Pelle" Pettersson (11 September 1902 – 1 June 1984) was a Swedish track and field athlete who competed in sprint and hurdling events. He competed at the 1924, 1928 and 1932 Summer Olympics in the 110 and 400 m hurdles and 400 m and 4 × 400 m sprint relay (six events in total). He won a bronze medal in the 110 m hurdles in 1924, and finished fourth in the 400 m hurdles and 4 × 400 m relay in 1928, while failing to reach the finals on other occasions. Pettersson held two world records, for about a year each, in the 110 m (1927–1928) and 400 m hurdles (1925–1927).
https://en.wikipedia.org/wiki/Sten_Pettersson