AF

Alexandre Fraignac

VF Vallourec Drilling Products France: 1 patents #2 of 5Top 40%
Overall (2017): #498,472 of 506,227Top 100%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9617799 Tubular component for drill stem provided with a transmission sheath fixed by threadings, and method for installing said component Francois Millet 2017-04-11