GV

Gerard Hendrik Josephus De Vries

📍 's-Hertogenbosch, NL: #98 of 252 inventorsTop 40%
Overall (All Time): #2,161,114 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7268467 Acoustic transducer — 2007-09-11
6128395 Loudspeaker system with controlled directional sensitivity — 2000-10-03