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

Quan Van Nguyen

E - Fixed Constructions – 21 – B

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Country: United States Of America

Cutting structure based hydraulics

E - Fixed Constructions – 21 – B
Patent

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Drill bit with protruding insert stabilizers

E - Fixed Constructions – 21 – B
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Hydro-lifter rock bit with pdc inserts

E - Fixed Constructions – 21 – B
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Seal protection for rock bits

E - Fixed Constructions – 21 – B
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Profile ID: LFCA-PAI-P-1692853

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