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RES (BREVETS RAKY)
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RES (BREVETS RAKY)
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E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
E21B49/005—Testing the nature of borehole walls or the formation by using drilling mud or cutting data
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FR342695D1904-04-271904-04-27Dispositif pour le classage automatique d'échantillons de terrains
ExpiredFR342695A
(fr)