At the end of 1973, Rudolf Hensel handed the company over to his three sons, Hans-Rudolf, Konrad and Karl-Ludwig Hensel. In 1980, the 93-year-old company founder dies as a result of an accident.

At the end of 1973, Rudolf Hensel handed the company over to his three sons, Hans-Rudolf, Konrad and Karl-Ludwig Hensel. In 1980, the 93-year-old company founder dies as a result of an accident.