HT

Helmut Trapp

VO Voest-Alpine: 2 patents #85 of 348Top 25%
📍 Stainach, AT: #1 of 2 inventorsTop 50%
Overall (All Time): #2,337,796 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4758049 Apparatus for the underground operation of a movable mining machine Gerhard Wernigg 1988-07-19
4700826 Device for conveying heaps of debris 1987-10-20