4. Boring or penetrating the earth
  5. Bit or bit element
  6. With fluid conduit lining or element

John M. Clegg

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Method of operating a steerable rotary drilling system

Boring or penetrating the earth – Processes – Boring curved or redirected bores
Patent

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Notary drill bits

Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Patent

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Rotary drill bits

Boring or penetrating the earth – Bit or bit element – Specific or diverse material
Patent

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Rotary drill bits

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit
Patent

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Rotary drill bits

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element
Patent

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Profile ID: LFUS-PAI-P-508647

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