WK

Walter Kerstan

WG Wessel-Werk Gmbh: 1 patents #8 of 17Top 50%
Overall (All Time): #4,081,075 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4243425 Method of refining the silicatic slag phase obtained in the thermal recovery of phosphorus from phosphates 1981-01-06