HK

Hendrik Cornelius KOOPMAN

📍 Puttershoek, NL: #3 of 11 inventorsTop 30%
Overall (All Time): #3,947,612 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4728532 Method of externally covering metal objects — 1988-03-01