In 1923 the company manufactured a small number of tracked agricultural tractors based on an American design. The Germans increased their ownership to 61% in 1925, three years later the name was changed to "AB Landsverk". In 1929 the German engineer Otto Merker was assigned to Landsverk to develop armoured vehicles, a few prototypes of a German design with both wheels and tracks were manufactured in Landskrona. In 1930 the Swedish Army ordered an armoured car for trials, and a few years later three light tanks on wheels and tracks.