RH

Roy Hansen

GA Gn Danavox A/S: 1 patents #1 of 2Top 50%
📍 Dragør, DK: #1 of 2 inventorsTop 50%
Overall (1997): #25,974 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5680467 Hearing aid compensating for acoustic feedback 1997-10-21
5619580 Hearing aid compensating for acoustic feedback 1997-04-08