JE

Jan van der Ent

RB Rontgen Technische Dienst B.V.: 1 patents #4 of 31Top 15%
📍 Bosschenhoofd, NL: #2 of 3 inventorsTop 70%
Overall (All Time): #3,296,657 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7762137 Method for checking a weld between two metal pipelines Jacobus Johannes M. van Nisselrolj, Edwin Theodorus van Kessel 2010-07-27