WJ

Werner Janning

BG Bfg Glassgroup: 1 patents #19 of 47Top 45%
Overall (All Time): #4,101,736 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4304052 Drying intumescent material Hans-Henning Nolte, Werner Brosker, Marcel De Boel 1981-12-08