TH

Terje Floor Heggeland

📍 Kalandseidet, NO: #2 of 4 inventorsTop 50%
Overall (All Time): #2,630,971 of 4,157,543Top 65%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11218825 Sound system for tunnels, corridors and other long and narrow confined spaces Eugene Zaikonnikov 2022-01-04