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Volker Koestring

WB Wavin B.V.: 1 patents #37 of 114Top 35%
Overall (All Time): #3,468,595 of 4,157,543Top 85%
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Issued Patents All Time

Patent #TitleCo-InventorsDate
6684910 Multi-layered pipe Jan Stoffelsma, Ali Guettouche, Helmut Schroeder 2004-02-03