Friedrich Soennecken was born in 1848.
Friedrich Litten was born in 1873.
Friedrich Gerstäcker was born in 1816.
Friedrich Fülleborn was born in 1866.
Friedrich Thielen was born in 1916.
Friedrich Kunath was born in 1974.
Friedrich Soennecken died in 1919.
Ring Binders were invented in 1886 by a man named Friedrich Soennecken. He also invented the hole bunch in 1886.
Friedrich Born was born in 1903.
Friedrich Golling was born in 1883.
Gerhard Friedrich was born on 1917-09-16.
Friedrich Witte was born in 1979.
Friedrich Neznansky was born in Belarus.
Friedrich Graumann was born in 1941.
Wilfried Friedrich was born in 1950.
Friedrich Hendrix was born in 1911.
Friedrich Dotzauer was born in 1783.
Friedrich Nürnberg was born in 1909.