WR

Werner Riha

ZA Zahnradfabrik Friedrichshafen Ag: 2 patents #61 of 267Top 25%
📍 Passau, DE: #26 of 89 inventorsTop 30%
Overall (All Time): #2,309,810 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5119594 Grinding machine for continuous roll grinding of gears — 1992-06-09
4854087 Grinding disc — 1989-08-08