Inventor
VIDAL JEAN-CHARLES
FR2 patents
Patents
2 patentsUS4649349AMar 10, 1987
Device for automatically compensating the magnetism of drill string members
COMMISSARIAT ENERGIE ATOMIQUE24 citations75
US4885536ADec 5, 1989
Magnetic process for determining a trajectory for finding a magnetic object and apparatus for performing the process
COMMISSARIAT ENERGIE ATOMIQUE12 citations69