PH

Per Helland

PA Prototech As: 1 patents #3 of 5Top 60%
Overall (All Time): #2,224,320 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6203548 Distraction apparatus — 2001-03-20
4488542 External setting and correction device for the treatment of bone fractures — 1984-12-18