LK

Luitzen B. Koopmans

📍 Schoonhoven, NL: #11 of 32 inventorsTop 35%
Overall (All Time): #2,335,410 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4727718 Winch system having hydraulic transmission including a safety circuit 1988-03-01
4441690 Displaceable winch device 1984-04-10