Hans Grade Fueger Werke
Hans Grade was the first German to fly in a triplane of his own design and with his own engine. Before First World War Grade had a civil flying school at Bork. His aircraft, mostly high-wing monoplanes, were not adopted by the military. First Germanjooping flights made in a Grade monoplane with landing gear both above and below wing.
Sold factory to Aviatik during First World War.