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ANTOINE BESSE
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ANTOINE BESSE
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Publication of FR13461EpublicationCriticalpatent/FR13461E/fr
E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
E21B10/00—Drill bits
E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
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FR13461A1909-09-161910-11-12Procédé et dispositif pour le sondage et l'établissement de puits artésiens
ExpiredFR13461E
(fr)