J. W. H. Van Rijzingen

VI Varco I/P: 1 patents #14 of 44Top 35%

📍 Oosterhout, NL: #2 of 6 inventorsTop 35%

Overall (2004): #74,667 of 270,089Top 30%

Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6758280	Non-seize material attachment for a drill slip system	Rosmalen R. Roling, David Mason	2004-07-06