RW

Ralf Walker

VM Voest-Alpine Bergtechnik Gesellschaft M.B.H.: 1 patents #11 of 30Top 40%
📍 Duisburg, DE: #420 of 870 inventorsTop 50%
Overall (All Time): #3,345,415 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7316456 Roadheading or mining machine with roof bolt drilling and setting devices Franz Wels, Karl Lerchbaum, Manfred Meier 2008-01-08