HD

Heinz Dressen

DG Dr. C. Otto & Comp. Gmbh: 1 patents #22 of 49Top 45%
Overall (All Time): #4,106,413 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
4188915 Water-cooled, high-temperature gasifier Joachim Kummel, Wilhelm Danguillier, Paul Gernhardt, Wolfgang Grams, Siegfried Pohl 1980-02-19