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

Tor Torgrimsen

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Combination of a reversible plough and seed preparation device

Earth working – Alternating for right or left hand operation – Tool shifted for opposite throw
Patent

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Hole opener for the top hole section of oil/gas wells

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

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Multi-share plough

Earth working – Alternating for right or left hand operation – Tool shifted for opposite throw
Patent

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Profile ID: LFUS-PAI-P-1118987

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