Bruno LEGRAND

Follow

Person

Maroilles, FR

People

Patents Grantslast 30 patents

Information Patent Grant
Assembly for producing a threaded connection for drilling and opera...
- Patent number 10,113,674
- Issue date Oct 30, 2018
- Vallourec Oil and Gas France
- Pierre Martin
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ASSEMBLY FOR PRODUCING A THREADED CONNECTION FOR DRILLING AND OPERA...
- Publication number 20160161031
- Publication date Jun 9, 2016
- VALLOUREC OIL AND GAS FRANCE
- Pierre MARTIN
- E21 - EARTH DRILLING MINING