Today Wilhelm Zellner celebrates his 90th birthday. Happy Birthday!

34 years - from 1962 to 1996 Wilhelm Zellner played a major role in shaping the fortunes of LAP, as chief engineer, managing director and shareholder. Under his responsibility, many important concrete structures were designed and realized. Like his great mentor Fritz Leonhardt, his special attention was the aesthetic design quality of the engineering structures.

Since his retirement, Wilhelm Zellner has remained very close to our office and a welcome guest at our company celebrations.

We wish him happiness and good health.

Leonhardt, Andrä and Partners