GW

Gert Wittneben

HH Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann: 1 patents #8 of 12Top 70%
Overall (1989): #33,123 of 140,708Top 25%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4848963 Earth pressure shield Siegmund Babendererde, Hans-Jurgen Flunker, Otto Braach 1989-07-18