OM

Olaf Mahmens

HH Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann: 1 patents #8 of 12Top 70%
📍 Werden, DE: #2 of 6 inventorsTop 35%
Overall (1989): #33,753 of 140,708Top 25%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4854776 Process and apparatus for lining a tunnel with concrete Volker Hentschel, Clemens Versteegen, Siegmund Babendererde 1989-08-08