4. Excavating
  5. Digging edge
  6. Tooth or adaptor

Pengo Corporation

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Auger head assembly and method of drilling hard earth formations

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

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Auger head assembly and method of drilling hard earth formations

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

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Auger tooth locking mechanism

Excavating – Ditch filler
Patent

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Excavating tooth and shank plate assembly

Excavating – Digging edge – Tooth or adaptor
Patent

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Pilot bit

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore
Patent

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