FS

Ferdinand H. F. G. Spierings

📍 Wageningen, NL: #127 of 389 inventorsTop 35%
Overall (All Time): #2,327,022 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4971741 Method of making a long narrow opening in a layer of electrically conductive material on a carrier of a synthetic resin material — 1990-11-20
4225633 Method of making a line-shaped opening in a coating on a plastics foil — 1980-09-30