RR

Ronaldus Roling

VI Varco I/P: 1 patents #16 of 43Top 40%
📍 Rosmalen, NL: #1 of 4 inventorsTop 25%
Overall (2005): #110,661 of 245,428Top 50%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6915857 Non-seize material attachment for a drill slip system Johannes Wilhelmus Henricus van Rijzingen, David Mason 2005-07-12