PH

Per C. Hansen

DW Dyckerhoff & Widmann: 1 patents #32 of 81Top 40%
📍 Oslo, NO: #1,297 of 2,623 inventorsTop 50%
Overall (All Time): #3,944,807 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4718209 Wedge anchorage for a tension member in a prestressed concrete structure Gero Herrmann 1988-01-12