DL

Derk B. Leeuwma

📍 Terschuur, NL: #2 of 3 inventorsTop 70%
Overall (All Time): #4,030,902 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4436110 Pressure regulating systems Marius de Groot 1984-03-13