Just Knut Qvigstad
Just Knut Qvigstad (20 December 1902 – 6 May 2001) was a Norwegian engineer. He was born in Tromsø as a son of educator and politician Just Knud Qvigstad (1853–1957) and Margrethe Antonette Aagaard (1859–1949). In 1933 he married Gunvor Wefring (1909-1963). He enrolled as a student in 1921, and graduated in electrical engineering from the Norwegian Institute of Technology in 1928. He worked in AEG from 1928, and as an assistant at the Norwegian Institute of Technology from 1929. He took the dr.techn. degree in 1937 with the thesis "Zur Theorie des Arbeitsdiagrammes der einphasigen Induktionsmaschine