HH

Helge Hjallen

📍 Kongsberg, NO: #91 of 212 inventorsTop 45%
Overall (All Time): #3,458,385 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6942194 Gate valve Roar Gravningen, Joern Syvertsen, Anders Nygaard, Hege Lill Birkeland 2005-09-13