4. Boring or penetrating the earth
  5. Bit or bit element
  6. Rolling cutter bit or rolling cutter bit element

Kenneth O. McDowell

Inventor

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Method and apparatus for detection of sand formations in amplitu

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent

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Rotary rock bit with infiltrated bearings

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Rotary rock bit with infiltrated bearings

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element
Patent

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Thin wall sintered bushing for a rock bit

Bearings – Rotary bearing – Roller drill bit
Patent

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Profile ID: LFUS-PAI-P-1240603

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