DM

David Mason

VI Varco International: 1 patents #1 of 3Top 35%
📍 Eindhoven, CA: #3 of 8 inventorsTop 40%
Overall (1994): #144,857 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5340182 Safety elevator Cornelis L. Busink, Johannes Wilhelmus Henricus van Rijzingen 1994-08-23