from 1917 on

1917

On April 23, the three companies Johann Balthasar Stieber & Sohn/Nuremberg, Johann Philipp Stieber/Roth, and Vereinigte Leonische Fabriken/Nuremberg merged to form Leonische Werke Roth-Nürnberg AG, with plants in Roth and Nuremberg-Muehlhof

1928

Production of enamelled wire

1931

Change of company name to Leonische Drahtwerke AG, Nuremberg.
Production of rubber sheathed cables

1943

Production of PVC insulated cables

1948

Production of power cords (cord sets)