WK

Willem Adrianus Kros

📍 Parow, ZA: #14 of 58 inventorsTop 25%
Overall (All Time): #3,245,264 of 4,157,543Top 80%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7915198 Aqueous solution of non-colloidal silicic acid and boric acid — 2011-03-29