GB

Godefridus J. Brakenhoff

SW Stichting Voor De Technische Wetenschappen: 1 patents #31 of 169Top 20%
Overall (All Time): #2,327,767 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4880294 Continuously variable microdiaphragm 1989-11-14
4796974 Device for focusing electromagnetic waves or sound 1989-01-10