SK

Siegfried Koepnick

DG Dynamit Nobel Gmbh: 1 patents #201 of 414Top 50%
📍 Troisdorf, DE: #180 of 353 inventorsTop 55%
Overall (All Time): #4,032,177 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4440833 Copper-laminated hard paper made of a fire resistant laminate Arnold Franz 1984-04-03