BW

Bartholomeus M. de Witt

AB Amsterdamse Ballast Bagger En Grond (Amsterdam Ballast Dredging) B.V.: 1 patents #2 of 10Top 20%
BN Ballast-Nedam Groep N.V.: 1 patents #2 of 16Top 15%
Overall (All Time): #4,061,648 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4418484 Method of dredging and dredging implement Tjako A. Wolters, Gerard W. H. Goedegebuure, Constantius H. M. Veltman 1983-12-06