WK

Wilhelmus F. Kragtwijk

DB Duphar International Research B.V.: 1 patents #85 of 182Top 50%
📍 Delft, NL: #552 of 1,192 inventorsTop 50%
Overall (All Time): #3,881,857 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5035860 Detection strip for detecting and identifying chemical air contaminants, and portable detection kit comprising said strips Adriaan Kleingeld, Kees R. Kooijmans 1991-07-30