SZ

Sjerp Zeldenrust

📍 Winsum, NL: #6 of 13 inventorsTop 50%
Overall (All Time): #3,567,412 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6499239 Method for extracting and grading sand Hendrikus Van Berk 2002-12-31