1926
Léon Charles Thévenin, French engineer (born 1857)
Léon Charles Thévenin, French engineer (born 1857)
Léon Charles Thévenin, French engineer (born 1857)
French telegraph engineer (1857–1926)
Léon Charles Thévenin, French engineer (born 1857)
Léon Charles Thévenin, French engineer (born 1857)