GR

Gerhard Ridder

MA Mannesmann Ag: 1 patents #514 of 1,341Top 40%
📍 Witten, DE: #159 of 328 inventorsTop 50%
Overall (All Time): #3,865,490 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5171170 Ship's drive with trolling device Jurgen Burdack 1992-12-15