PO

Per Olav

EA Elkem As: 1 patents #43 of 96Top 45%
📍 Askim, NO: #11 of 19 inventorsTop 60%
Overall (All Time): #3,932,339 of 4,157,543Top 95%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4846680 Ceramic composite material and a lining for metallurgical smelting furnaces wherein a ceramic composite material is used Otto Kristian Sonju 1989-07-11