RG

Robert Groll

📍 Schönberg, DE: #5 of 14 inventorsTop 40%
Overall (All Time): #4,032,731 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4442758 Piston machine — 1984-04-17