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VA Von Roll Umwelttechnik Ag: 1 patents #19 of 37Top 55%
Overall (All Time): #3,336,570 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7595033 Regeneration of nt-scr catalysts Ruedi Frey 2009-09-29