ASSN POUR LA RECH ET LE DEV DE METH ET PROCESS IND

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Paris, FR

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Information Patent Application
DRILL PIPE AND CORRESPONDING DRILL FITTING
- Publication number 20120199400
- Publication date Aug 9, 2012
- ASSN POUR LA RECH ET LE DEV DE METH ET PROCESS IND
- Jean Boulet
- E21 - EARTH DRILLING MINING