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

Robert Delwiche

E - Fixed Constructions – 21 – B

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Details

Inventor

Country: Belgium

Bit for drilling wells and associated drilling method

E - Fixed Constructions – 21 – B
Patent

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Drilling head

E - Fixed Constructions – 21 – B
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Drilling tool with shock dampers

E - Fixed Constructions – 21 – B
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Hardfacing with coated diamond particles

E - Fixed Constructions – 21 – B
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Integral drilling tool bit

E - Fixed Constructions – 21 – B
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Profile ID: LFCA-PAI-P-1887297

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