HF

Hans-Jurgen Flunker

HH Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann: 1 patents #10 of 22Top 50%
Overall (All Time): #3,932,982 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4848963 Earth pressure shield Siegmund Babendererde, Gert Wittneben, Otto Braach 1989-07-18