4. E - Fixed Constructions
  5. 21
  6. B

Kelly Knighton

E - Fixed Constructions – 21 – B

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Country: United States Of America

Hydraulic lift inner barrel in a drill string coring tool

E - Fixed Constructions – 21 – B
Patent

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Self-activating, positively driven concealed core catcher

E - Fixed Constructions – 21 – B
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Profile ID: LFCA-PAI-P-1143362

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