DF

Dirk Fischer

HH Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann: 1 patents #10 of 22Top 50%
📍 Burgwedel, DE: #45 of 83 inventorsTop 55%
Overall (All Time): #4,030,979 of 4,157,543Top 100%
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4436448 Excavating machine for tunnels and galleries Wolf Magnus, Otto Braach, Werner Wippig 1984-03-13