HG

Helge G. Gran

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Kristiansand, NO: #108 of 236 inventorsTop 50%
Overall (All Time): #3,894,553 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4895710 Nitrogen injection Gotfred Hartmann 1990-01-23