WD

Walter Duttine

MA Mannesmann Ag: 2 patents #274 of 1,341Top 25%
Overall (All Time): #2,325,108 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4958723 Roller track Edgar Bonifer, Hartwig Reckemeier 1990-09-25
4942957 Conveying roller apparatus Edgar Bonifer 1990-07-24