Adolf Froelich
Adolf Froelich was a Polish inventor, dentist and participant in the Polish-Soviet War.Adolf Froelich was born in Łaziska, Opole Lubelskie County, Poland, to parents Reinhold Froelich and Antonina Wilhelmina Józefina Froelich.
He studied brewing technology at the scientific department Weihenstephan of the Technical University of Munich in Freising. Furthermore, he studied dentistry. He got his dentist approbation in 1918. As a dentist he worked inter alia in Jędrzejów.
In 1932 he invented the double propeller.
He was officer of the Polish Armed Forces. As a dentist he took part in the Polish-Soviet War being a member of the 9th Infantry Division. He died in Warsaw.
