RW

Rolf Wichern

HH Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann: 1 patents #10 of 22Top 50%
Overall (All Time): #3,975,689 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4670315 Process for providing a synthetic resin coating on a concrete structure Bernd Hillemeier 1987-06-02