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

Patrick J. Lacey

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Drill bit for reinforced concrete

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

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Expanding anchor bolt assembly

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander
Patent

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Undercutting tool

Turning – Radially moving rotating tool inside bore – Tool simultaneously moving axially
Patent

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Profile ID: LFUS-PAI-P-9017

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