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

John Clayton Thomas

E - Fixed Constructions – 21 – B

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Country: United States Of America

Cutting structures for earth-boring drill bits

E - Fixed Constructions – 21 – B
Patent

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Drilling out casing bits with other casing bits

E - Fixed Constructions – 21 – B
Patent

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Earth-boring tools attachable to a casing string and methods...

E - Fixed Constructions – 21 – B
Patent

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Profile ID: LFCA-PAI-P-1260349

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