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Joern Syvertsen

📍 Skollenborg, NO: #6 of 7 inventorsTop 90%
Overall (All Time): #3,458,384 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, Anders Nygaard, Hege Lill Birkeland, Helge Hjallen 2005-09-13