HH

Helge Hjallen

📍 Kongsberg, NO: #2 of 15 inventorsTop 15%
Overall (2005): #191,797 of 245,428Top 80%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

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