RG

Roar Gravningen

📍 Kongsberg, NO: #42 of 212 inventorsTop 20%
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2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8905374 Double disc gate valve Anders Nygaard 2014-12-09
6942194 Gate valve Joern Syvertsen, Anders Nygaard, Hege Lill Birkeland, Helge Hjallen 2005-09-13