Karl Rathgen died in 1921.
Karl Rathgen was born in 1856.
Friedrich Rathgen died in 1942.
Friedrich Rathgen was born in 1862.
F. Rathgen has written: 'The preservation of antiquities'
Rathgen Research Laboratory was created on 1888-04-01.
Friedrich Rathgen has written: 'Verwitterung und Erhaltung von Werksteinen' -- subject(s): Building stones, Testing
Karl Schaidler died in 1990.
Karl Vollbrecht died in 1973.
Karl Bergeest died in 1983.
Karl Hruschka died in 1970.
Karl Friedl died in 1970.
Karl Uhle died in 1969.