FF

Fritz Feigk

DR Dravo: 1 patents #27 of 74Top 40%
Overall (All Time): #4,108,687 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4194729 Sintering with exhaust gas pipes Karl F. Wacker 1980-03-25